Question

Juan thinks that, on average, each math homework problem will take 3 minutes to solve. He tells his parents that it will be more than 40 minutes before he is done with math homework. If n stands for the number of problems, which inequality describes this situation?

A. n + 3 > 40
B. n + 3 < 40
C. 40 > 3n
D. 40 < 3n​

Answer 1

-13

Explanation:

f(x)=2x-5 for f(-4)

f(-4) means let x=-4

f(-4) = 2(-4) -5

f(-4) =-8-5

= -13