Solve the problem.From a thin piece of cardboard 50 in. by 50 in., square corners are cut out so that the sides can be folded up to make a box. What dimensions will yield a box of maximum volume? What is the maximum volume? Round to the nearest tenth, if necessary.
A. 33.3 in. by 33.3 in. by 16.7 in.; 18,518.5 in.3
B. 33.3 in. by 33.3 in. by 8.3 in.; 9259.3 in.3
C. 16.7 in. by 16.7 in. by 16.7 in.; 4629.6 in.3
D. 25 in. by 25 in. by 12.5 in.; 7812.5 in.3
Answer: B
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Solve the problem. Assume that simple interest is being calculated in each case. Round the answer to the nearest cent unless otherwise indicated.John forgot to pay his $400.00 income tax on time. The IRS charged a penalty of 5% for the 56 days the money was late. Find the penalty that was paid. (Use a 365 day year.)
A. $3.07 B. $3.01 C. $0.33 D. $403.07
Provide an appropriate response.Find y' if y = 
What will be an ideal response?
Solve the problem.A drug company establishes that the most effective dose of a new drug relates to body weight as shown below. Let body weight be the independent variable and drug dosage be the dependent variable. Use a graphing utility to draw a scatter diagram and to find the line of best fit. What is the most effective dosage for a person weighing 130 lbs? 
A. 22.3 mg B. 14.24 mg C. 13.07 mg D. 14 mg
Solve.How much money will Andy have if he invests $8000 for 8 years at a rate of 6.7% annual interest compounded annually?
A. $68,288.00 B. $12,288.00 C. $483,973.69 D. $13,440.19