Use the building block to calculate 75% of $84.

84/x=100/75

(84/x)*x=(100/75)*x       - we multiply both sides of the equation by x

84=1.33333333333*x       - we divide both sides of the equation by

(1.33333333333) to get x

84/1.33333333333=x 

63=x 

x=63

This means that 75% of $84 is $63

An easier way to explain it is:

75% is equivalent to 75 / 100

75% of $84 is: (75 / 100) * $84

$63

Hope I helped!

Let me know if you need anything else!

~ Zoe