Solve the problem.A machine produces open boxes using square sheets of plastic. The machine cuts equal-sized squares measuring 2 inches on a side from each corner of the sheet, and then shapes the plastic into an open box by turning up the sides. If each box must have a volume of 242 cubic inches, find the length of one side of the open box.
A. 15 in.
B. 10 in.
C. 13 in.
D. 11 in.
Answer: D
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Evaluate the improper integral or state that it is divergent.
A. 
B. -4?
C. - 
D. 0
Consider below the branching tree diagram based on the number per 3000 American adults. 
LetT = the set of Americans who like classical music R = the set of Republicans who like classical music D = the set of Democrats who like classical music I = the set of Independents who like classical musicDetermine whether the statement is true or false.Let M = the set of Democratic men who like classical music W = the set of Democratic women who like classical musicIf x ? D, then x ? W.
A. True B. False
Solve the equation.
= 3
A. 36, 72 B. -36 C. -72, -36 D. 72, -36
Solve using matrices.Walt made an extra $7000 last year from a part-time job. He invested part of the money at 9% and the rest at 8%. He made a total of $600 in interest. How much was invested at 8%?
A. $4000 B. $3000 C. $5000 D. $3500