Answer:
0.75ft per square
Step-by-step explanation:
We know that the number of squares is 24 so we need to determine the dimension of 1 square.
We know the width is 4.5 and we also know that there are 6 squares within that area.
Therefore we can use a fraction to find our answer.

1725+1725x0.15=t
1725+258.75=t
1983.75=t
The total cost of the couch is $1983.75
You can solve using the quadratic formula and the zeros it produces will be the solutions.