Answer:
The answer to your question is $79.38
Explanation:
Data
base = 8.1 m
height = 3.5 m
cost = $2.80/ m²
Formula
Area of a parallelogram = base x height
Substitution
Area of a parallelogram = 8.1 x 3.5
= 28.35 m²
Total cost of the carpet
1 m² ------------------- $2.80
28.35 m² --------------- x
x = (28.35 x 2.80) / 1
x = 79.38 m²