ASAP! Let us consider a rather routine problem of laying a brick patio.
ENGLISH SYSTEM
Problem: How many bricks 3.75 in. wide x 8 in. long are required to cover a patio 16 ft. 3 in. wide by 19 ft. 8 in. long?

Step 1. First, find the total width and length of the patio in inches.
Step 1a. Convert the portion of width and length that is expressed in feet to inches:
width: 16 ft. = 16 x ? = ? in.
length: 19 ft. = 19 x ? = ? in.
Step 1b. Add these values to the portion of the width and length of the patio expressed in inches to find totals:
total width: ? in. + 3 in. = ? in.
total length: ? in. + 8 in. = ? in.
Step 2. Find the area of the patio in square inches by multiplying its total width by its total length:
? in. x ? in. = ? in.²
Step 3. Find the area of each brick in square inches by multiplying its width by its length:
? in. x ? in. = ? in.²
Step 4. Find the number of bricks needed by dividing the patio area by the brick area (round up to the nearest whole brick):
?/? = ? bricks