Answer:
20%
Step-by-step explanation:
Let's set up an equation:
65-x%(65)=52
Let's change x% into x/100 to make calculations easier
65-x/100(65)=52
65-13x/20=52
Subtract 65 from both sides
-13x/20=-13
Multiply 20 to both sides to get rid of the fraction
-13x=-260
Divide -13 from both sides to isolate x
x=20
20%
