Solve the problem.A swimming pool has a rectangular base 10 ft long and 20 ft wide. The sides are 4 ft high, and the pool is full of water. How much work will it take to lower the water level 2 feet by pumping the water out over the top of the pool? Assume that the water weighs   Give your answer to the nearest ft ? lb.

A. 199,680 ft ? lb
B. 12,480 ft ? lb
C. 24,960 ft ? lb
D. 99,840 ft ? lb


Answer: C

Mathematics

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Choose the line that most closely resembles the graph of the given equation.y = -1

A.

B.

C.

D.

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Solve.Martha can rake the leaves in her yard in 5 hours. Her younger brother can do the job in 6 hours. How long will it take them to do the job if they work together?

A. 2 hr
B.  hr
C. 6 hr
D. 30 hr

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Solve the equation by the square root property.(4x + 3)2 - 6 = 0

A.
B.
C.
D.

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To travel 76 miles, it takes Sue, riding a moped, 3 hours less time than it takes Doreen to travel 84 miles riding a bicycle. Sue travels 7 miles per hour faster than Doreen. Find the times and rates of both girls. 

A. Sue: 19 mph for 4 hours, Doreen: 12 mph for 7 hours B. Sue: 12 mph for 4 hours, Doreen: 19 mph for 7 hours C. Sue: 23 mph for 8 hours, Doreen: 16 mph for 11 hours D. Sue: 4 mph for 19 hours, Doreen: 12 mph for 7 hours E. Sue: 29 mph for 4 hours, Doreen: 22 mph for 7 hours

Mathematics