What is the estimate of a door in feet

The height of an interior residential door is about 7 ft.

Doors on commercial buildings or upscale residences may be taller. The usual width is about 3 ft.

My front door measures 6 2/3 ft high by about 3 ft wide. My bedroom doors are 2 1/2 ft wide. The minimum for ADA-compliant doors is 2 2/3 ft.

1. 22

2. 1

3. 7

4. 18

step-by-step explanation

e2020 got it right

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.