Question

1. there are 18 floors in a building. each floor has the same number of offices. altogether there are 396 offices in the building.

which equation can be used to find $f$, the number of offices on each floor of this building?
$18 - f = 396$
$18f = 396$
$\frac{f}{18}=396$
$18 + f = 396$

Explanation:

Step1: Define relationship

Total offices = Floors × Offices per floor

Step2: Substitute given values

Let $f$ = offices per floor. So $18 \times f = 396$, or $18f = 396$.

Answer:

B. $18f = 396$