Quick fix inc. repairs bikes. the company’s revenue is modeled by the function r(h)=220h−160 for every h hours spent repairing bikes. the company’s overhead cost is modeled by the function c(h)=20h2−400 . after how many hours does the company break even? enter your answer in the box.

beanburito

step-by-step explanation:

3< x< 5

step-by-step explanation:

|x - 4| < 1

there are two solutions, one positive and one negative.   remember to flip the inequality when taking the negative solution

x-4 < 1       x-4 > -1

add 4 to each side

x-4+4 < 1+4       x-4+4 > -1+4

x< 5                 x> 3

3< x< 5