Answer:
Step-by-step explanation:
The backyard is rectangular in shape.
The formula for determining the area of a rectangle is expressed as
Area = length × width
If the length of his backyard is 19.5 ft, then the area of the backyard would be 19.5W square feet.
it cost her 945 dollars to fence the yard. If it cost $15 per foot, it means that the total area that was fenced is
945/15 = 63 square feet.
Since the area of the backyard is 19.5W square feet, then
19.5W = 63
W = 63/19.5
W = 3.2 feet
