Solve.The water in a tank weighs 358.18 lb. One cubic foot of water weighs 62.5 lb. How many cubic feet of water are in the tank? (Round to the nearest hundredth.)
A. 420.68 cu. ft
B. 22,386.25 cu. ft
C. 5.73 cu. ft
D. 0.17 cu. ft
Answer: C
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Evaluate.cos-1
A. - 
B. - 
C. 
D. 
Solve. If necessary, round percents to the nearest tenth, dollar amounts to the nearest cent, and all other numbers to the nearest whole.The enrollment at a local college decreased by 3% over last year's enrollment of 3400. Find the current enrollment.
A. 102 students B. 3397 students C. 3298 students D. 3502 students
Solve the inequality.Correct Computers, Inc., finds that the cost to make x laptop computers is C = 2490x + 188,272, while the revenue produced from them is R = 2847x (C and R are in dollars). What is the smallest whole number of computers, x, that must be sold for the company to show a profit?
A. 36 B. 1,004,807,664 C. 528 D. 67,213,104
Solve the problem.For what values of x would the rectangle have a perimeter of at least 170? 4x + 2 
A. 8 or less B. 8 or greater C. 17 or greater D. 17 or less