Solve the equation by factoring.
= 
A. {16, 1}
B. {4, -1}
C. {16, -1}
D. {4, 1}
Answer: C
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Solve the problem.Amy is making a cubic cardboard box and intends it to be 10 in. long on each side. She can't find her ruler, so the errors in her measurements can be up to 10%. Express the possible volume of the box V as an inequality and graph the values of V. 
V = volume in cu. in.
A. 900 ? V ? 1100
V = volume in cu. in.
B. 1000 ? V ? 1331
V = volume in cu. in.
C. 1000 ? V ? 1100
V = volume in cu. in.
D. 729 ? V ? 1331
V = volume in cu. in.
Solve the problem.Suppose that the amount of oil pumped from a well decreases at the continuous rate of 
per year. When, to the nearest year, will the well's output fall to one-eighth of its present value?
A. 11 years B. 2 years C. 16 years D. 24 years
Simplify the exponential expression.
-4
A. 
B. 
C. 
D. 
Perform the indicated operation. Assume that all variables represent nonnegative real numbers.4
+ 4
A. 16
B. 16m
C. 328
D. 328m