Answer
$12.6$
Work Step by Step
We can rewrite this problem using math symbols and numbers. "Of" in math means "multiply".
So we can rewrite the problem as x = 42% $\times$ 30. We can write that with the percentage being a decimal: x = 0.42 $\times$ 30.
So, to solve for x, just multiply!
x = 12.6
