What is the original price if saidhari and she paid $75 and it was 1/4 off the price

Let's set the original price as x.

1/4 off the original price would be

x-1/4x=3/4x

Set it equal to 75

3/4x=75
3x=300
x=100

The original price was $100.

Hope this helps!

The density of the cube is 40