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题目： The number of rooms at Hotel G is 10 less than twice the number of rooms at Hotel H. If the total number of rooms at Hotel G and Hotel H is 425, what is the number of rooms at Hotel G ?

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题目： $$\frac{3}{100}$$ + $$\frac{5}{1,000}$$ +$$\frac{7}{100,000}$$=

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题目： If r and s are positive integers such that $$(2^{r})(4^{s}) = 16$$, then $$2r + s$$ =

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题目： Three people each contributed x dollars toward the purchase of a car. They then bought the car for y dollars, an amount less than the total number of dollars contributed. If the excess amount is to be refunded to the three people in equal amounts, each person should receive a refund of how many dollars?

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题目： $$2x+2y=-4$$ $$4x+ Y= 1$$ In the system of equations above, what is the value of x?

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题目： Last week Jack worked 70 hours and earned $1,260. If he earned his regular hourly wage for the first 40 hours worked, $$1\frac{1}{2}$$ times his regular hourly wage for the next 20 hours worked, and 2 times his regular hourly wage for the remaining 10 hours worked, what was his regular hourly wage?

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题目： If Mel saved more than $10 by purchasing a sweater at a 15 percent discount, what is the smallest amount the original price of the sweater could be, to the nearest dollar?

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题目： If a and bare positive integers and$$(2^{a})^{b}=2^{3}$$, what is . the value of $$2^{a}2^{b}$$ ?

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题目： $$\frac{1}{3- \frac{1}{3- \frac{1}{3-1}}}$$=

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题目： After 4,000 gallons of water were added to a large water tank that was already filled to $$\frac{3}{4}$$ of its capacity, the tank was then at $$\frac{4}{5}$$ of its capacity. How many gallons of water does the tank hold when filled to capacity?

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题目： Five machines at a certain factory operate at the same constant rate. If four of these machines, operating simultaneously, take 30 hours to fill a certain production order, how many $$\underline{fewer}$$ hours does it take all five machines, operating simultaneously, to fill the same production order?

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题目： A certain toll station on a highway has 7 tollbooths, and each tollbooth collects $0. 75 from each vehicle that passes it. From 6 o'clock yesterday morning to 12 o'clock midnight, vehicles passed each of the tollbooths at the average rate of 4 vehicles per minute. Approximately how much money did the toll station collect during that time period?

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题目： How many integers between 1 and 16, inclusive, have, exactly 3 different positive integer factors? (Note: 6 is NOT such an integer because 6 has 4 different positive integer factors: 1, 2, 3, and 6.)

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题目： If d = 2.0453 and $$d^{*}$$ is the decimal obtained by rounding d to the nearest hundredth, what is the value of $$d^{*}$$ - d?

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题目： Stephanie has 2$$\frac{1}{4}$$ cups of milk on hand and makes 2 batches of cookies, using $$\frac{2}{3}$$ cup of milk for each batch of cookies. Which of the following describes the amount of milk remaining after she makes the cookies?