marisol is painting on a piece of canvas that has an area of 180 square inches. the length of the painting is 1 1/4 times the width. what are the dimensions of the painting

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

3x+9+4x+x=8x+9that's the answer for your question.

32.10 is the correct answer