Solve the problem.A swimming pool has a rectangular base 14 ft long and 28 ft wide. The sides are 6 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. 48,922 ft ? lb
B. 24,461 ft ? lb
C. 440,294 ft ? lb
D. 880,589 ft ? lb
Answer: A
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Solve the problem.A certain radioactive isotope decays at a rate of 2% per 100 years. If t represents time in years and y represents the amount of the isotope left then the equation for the situation is 
In how many years will there be 93% of the isotope left?
A. 363 years B. 253 years C. 350 years D. 700 years
Simplify each side of the equation, if possible. Then solve the equation.
k + 5k = 24 - 3 + 2
A. k = 29
B. k = 
C. k = 
D. k = 23
Solve.A town has a population of 10,000 people and is increasing by 10% every year. What will the population be at the end of 4 years?
A. 14,641 B. 4641 C. 14,000 D. 13,310
Write the answer to the problem as an algebraic expression.A theater ticket for adults is A dollars and the price of a child's ticket is c dollars. If 14 adults and 21 children attend the theater one night, how much money did the theater make?
A. 294Ac dollars B. 14A + 21c dollars C. 14c + cA dollars D. 21A + 14c dollars