#### Answer

80

#### Work Step by Step

65 % of what number is 52 ?
65 is percent
what number is base
52 is amount
$\frac{52}{b}$=$\frac{65}{100}$ set cross product equal
65$\times$ b = 52 $\times$ 100 Multiply
65b= 5200 divide both sides by 100
$\frac{65b}{65}$ = $\frac{5200}{65}$
b= 80
52 is 65 % of 80.