It is recommended that one fire extinguisher be available for every 6000 ft.² in a building right and solve an equation to determine x, the number of fire extinguishers needed for a building that has 135,000 square feet

6000x = 135000; x ≈ 23.

We are required to have one fire extinguisher for every 6000 ft of space in the building; this means we need to find out how many 6000-ft spaces we have in 135000.

Solving this equation, we divide both sides by 6000:

6000x/6000 = 135000/6000 = 22.5 ≈ 23