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题目： Each signal that a certain ship can make is comprised of 3 different flags hanging vertically in a particular order. How many unique signals can be made by using 4 different flags?

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题目： For all integers x and y, the operation $$\Delta $$ is defined by $${x}\Delta{y}=({x}+{2})^{2}+({y}+{3})^{2}$$. What is the value of integer t?(1)$$ t \Delta 2 = 74$$(2) $$2 \Delta t = 80$$

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题目： The figure shown represents a board with 4 rows of pegs, and at the bottom of the board are 4 cells numbered 1 to 4. Whenever the ball shown passes through the opening between two adjacent pegs in the same row, it will hit the peg directly beneath the opening. The ball then has the probability $$\frac1 2$$ of passing through the opening immediately to the left of that peg and probability $$\frac1 2$$ of passing through the opening immediately to the right. What is the probability that when the ball passes through the first two pegs at the top it will end in Cell 2?

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题目： Consider an individual boy from a model population. Suppose that from age 2 through age 5, this boy's weight is at the 97th percentile for his height and his height is at the 97th percentile for his age. Which one of the following statements must be true of the boy at age 5 years 0 months?

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题目： Organization A currently has 1,050 members. Organization B currently has 1,550 members. The number of members of Organization A and the number of members of Organization B are increasing annually, each at its own constant rate. Analysts project that if each of these organizations maintains its constant annual rate of membership increase, five years from now they will for the first time have the same number of members, and in subsequent years Organization A will have more members than Organization B.In the table below, identify a rate of increase, in members per year, for Organization A and a rate of increase, in members per year, for Organization B that together are consistent with the analysts` projection. Make only one selection in each column.

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题目： If x and y are different prime numbers, each greater than 2, which of the following must betrue?I $${x}+{y} \neq{91} $$II x - y is an even integer.III $$\frac{x}{y}$$is not an integer.

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题目： In the xy-plane, if line k has negative slope and passes through the point (-5,r), is the x-intercept of line k positive?(1) The slope of line k is -5.(2) r>0

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题目： If each of the 12 teams participating in a certain tournament plays exactly one game with each of the other teams, how many games will be played?

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题目： Departments A, B, and C have 10 employees each, and department D has 20 employees. Departments A, B, C, and D have no employees in common. A task force is to be formed by selecting 1 employee from each of departments A, B, and C and 2 employees from department D. How many different task forces are possible?

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题目： At a fruit stand yesterday, the price of each apple was $0.10 more than the price of each orange. What was the total revenue from the sale of oranges at the fruit stand yesterday?(1) The number of oranges sold at the fruit stand yesterday was 5 more than the number of apples.(2) The total revenue from the sale of apples at the fruit stand yesterday was $15.00

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题目： The total charge to rent a car for one day from Company J consists of a fixed charge of $15.00 plus a charge of $0.20 per mile driven. The total charge to rent a car for one day from Company K consists of a fixed charge of $20.00 plus a charge of $0.10 per mile driven. Is the total charge to rent a car from Company J for one day and drive it x miles less than $25.00 ?(1)The total charge to rent a car from Company K for one day and drive it x miles is less than $25.00.(2)x < 50

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题目： On January 1, 1994, Jill invested P dollars in an account that pays interest at a rate of 8 percent per year, compounded annually on December 31. If there were no other deposits or withdrawals in the account, how many dollars were in the account on January 1, 1998, in terms of P?

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题目： The author mentions the seamstresses' view of guild membership as a "mark of independence from the patriarchal family" primarily in order to

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题目： The primary purpose of the passage is to

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题目： Consider each of the following statements. Does the information in the three articles support the inference as stated?