Simplify.
A. 
B. 48
C. 12
D. 36
Answer: D
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Use the rules for exponents to rewrite the expression and then evaluate the new expression. (-2)2(-2)3
A. -64
B. -32
C. 
D. 
Answer the question.Mr. Rivera opened a package of 150 drinking cups for his restaurant. During the day, 97 cups were used. What fraction of the package of cups was used? Express the result using a simple, convenient fraction that is close in value to the exact answer.
A. 
B. 
C. 
D. 
Solve the problem.Newton's Law of Cooling states that the temperature of a heated object decreases exponentially over time toward the temperature of the surrounding medium. Suppose that a coffee is served at a temperature of 132°F and placed in a room whose temperature is 70°F. The temperature ? (in °F) of the coffee at time t (in minutes) can be modeled by ?(t) = 70 + 62e-0.08t. When will the temperature be 105°F?
A. 3.6 minutes B. 2.9 minutes C. 1.5 minutes D. 7.1 minutes
Write the expression as the sum or difference of single logarithms.log2
A. log2(17
) - log2s
B. log217 + 
log2r - log2s
C. log2s - log217 - 
log2r
D. log217 ? 
log2m ÷ log2s