X plus 40 percent equals 7
x+40%=7
x=7-0.4
x=6.6
What's 30 out of 40 equal to 100
40/30=4/3=100/75
What is 37.5-40
-2.5
x+40%=7
x=7-0.4
x=6.6
40/30=4/3=100/75
-2.5