Question

suppose you are starting an office-clening service. You have spent $315 on equipment.To clean an office, you use $4 worth of supplies.Yoou charge $25 per office. How many offices must you clean to break even?

Answer 1

Solve this equation:

Costs = Revenue

315 + 4x = 25x

x is the number of offices cleaned.

The answer will be an integer.