The formula for the area of a rectangle is length x width.
Substitue the length and width into the formula
(X + 5) x 3 = A
The answer would be 3X + 15
Answer:
is that the question??
Step-by-step explanation:
His answer is not reasonable because the decimal is misplaced. The actually answer is 21.5564, all he did was move the decimal place over.