Solve the problem.An open box is to be made from a rectangular piece of tin by cutting two inch squares out of the corners and folding up the sides. The volume of the box will be 100 cubic inches. Find the dimensions of the rectangular piece of tin.
A. 5 in. by 10 in.
B. 5 in. by 9 in.
C. 4 in. by 9 in.
D. Not enough information
Answer: D
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The two figures are congruent. Find the measure of the requested side or angle.?B'C'D'
A. ?B'C'D' = 224° B. ?B'C'D' = 210.2° C. ?B'C'D' = 120.2° D. ?B'C'D' = 134°
Simplify. Assume that no radicands were formed by raising negative quantities to even powers.
+ 6
+ 3
A. 9x
B. 9x
C. 19x
D. 19x
Rationalize the denominator. Assume all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Roderick has an Internet service that charges by the hour. This piecewise function shows the cost of the Internet service based on the number of hours that Roderick uses the Internet.
Last month, Roderick used the Internet for 7.5 hours. What was he charged?
What will be an ideal response?