An Excavating Company Charges $330 an Hour for the Use

Short Answer

An excavating company charges $330 an hour for the use of a backhoe and $550 an hour for the use of a bulldozer. The company employs one operator for 40 hours per week to operate the machinery. If the company wants to bring in at least $18,500 each week from equipment rental, how many hours per week can it schedule the operator to use a backhoe?
__________ hr