Brian wants to become a sales manager. The number of years of college needed to become a sales manager is 4 years. The average annual income is $60,000. If Brian starts college at age 18, gets a job immediately out of college, and works until age 65, what will his lifetime income be?

a

step-by-step explanation:

the correct answers i think are b. and d.

give me brainliest if it is correct!

im guessing (23,14). hope this : )

answer: -10

step-by-step explanation:

s(t) = 1 - 10t

s(x) = 1 - 10x

s(x + h) = 1 - 10(x + h)

            = 1 - 10x - 10h

s(x + h) - s(x) = 1 - 10x - 10h - (1 - 10x)

                      = 1 - 10x - 10h - 1 + 10x

                      = -10h

= -10