Simplify.[20 - (4 + 6) ÷ 2] - [1 + 6 ÷ 3]
A. 9
B. 12
C. 19
D. 7
Answer: B
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Evaluate the function for the given value.Given f(x) = 16x + 19, find f(-17).
A. 16 B. -253 C. -291 D. 291
Provide an appropriate response.Find the amount of increase if 48 is increased by 25%.
A. 58 B. 60 C. 12 D. 10
Express the number as the ratio of two integers.0.484484 . . .
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 150°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 + 80e-0.06t. When will the temperature be 105°F?
A. 13.8 minutes B. 6.9 minutes C. 5.9 minutes D. 6.2 minutes