Frank wants to earn at least $59 trimming trees. He charges $7 per hour and pays $4 in equipment fees. What are the possible numbers of hours frank could trim trees?

Question

It’s about absolute value and compound equalitys

Answer 1

59 ≤ 7x - 4

63 ≤ 7x

9 ≤ x

nine or more hours are required to earn 59 or more.