I believe the answer is N+14=72
What you have to do is multiply 21 by 2. it is 42. $42 dollars was the original price of the bookcase.
Answer:
I need help too
Step-by-step explanation:
P= perimeter. x= # of inches. 4=number of sides in a square
P= 4x
so, P= 13.4 x 4. Therefore, the perimeter is 53.6 inches.
