Simplify.
12(x - 4) + 4(x + 7)

a)
8x - 20

b)
8x + 76

c)
16x - 20

d)
16x - 28

5500 dollars is placed in an account with an annual interest rate of 6.5%. to the nearest tenth of a year, how long will it take for the account value to reach 19700 dollars?

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пол

Having a hard time understanding this question (see attachment).