Marisol is painting on a piece of canvas that has a area of 180 square inches. The length of the painting is 1 1/4 times the width

The answer is 15! Heres the shown work! let x be a width

1 1/4x be the length (or it can be 5/4 i prefer this one)

formula for rectangle

lxw=a

5x/4 (x) = 180

4[5x^2/4=180]4

5x^2=720

x^2=144

x=12

so width is 12 and length is

5x/4

5 (12) / 4

60/4

=15