I don't know how to solve this math problem?

A call center is 120 yd. long and 40 yd. wide. Each employee requires 30 sq. ft. if the center needs to have 40% of open space, how many employees can be seated in the center?

1 answer

120 yards = 360 feet
40 yards = 120 feet

A = LW
A = 360 * 120
A = 43,200 square feet

43,200 * 0.6 = 25,920 square feet for employees

25,920 / 30 = 864 employees