$\"\"$

\

18 is 36% of what number? (Write the question)

\

$\"\"$ (Write percent equation)

\

$\"\"$ (Substitute 18 for a and 36 for p)

\

$\"\"$ (Write percent as decimal)

\

$\"\"$ (Divide each side by 0.36) \ \

\

$\"\"$ (Cancel common terms)

\

$\"\"$ (Divide: $\"\"$ ) $\"\"$

\

$\"\"$ $\"\"$ is the solution.