18 is 54% of what number?

33 1/3

Step-by-step explanation:

54% is 0.54 as a decimal.

"is" means an equals sign in math

"what number" is an unknown value, so it's a variable

18 is 54% of what number can be translated to ...

18 = 0.54x

solve for x ...

18/0.54 = x (divide both sides by 0.54)

33.333333 = x

33 1/3 = x

The answer is 33.3 repeating or 33 1/3.