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\(\newcommand{\divideunder}[2]{\frac{#1}{{\color{blue}{{#2}}}}}\newcommand{\amp}{&}\)

How much is $30\%$ of $\$24.00\text{?}$
$x=0.3\cdot24$
$x$ is
.

$\$7.20$ is what percent of $\$24.00\text{?}$
$7.2=P\cdot24$
$P$ is
.

$\$7.20$ is $30\%$ of how much money?
$7.2=0.3\cdot x$
$x$ is
.

Solution

$\begin{aligned}[t] x\amp=0.3\cdot24\\ x\amp=7.2 \end{aligned}$

$\begin{aligned}[t] 7.2\amp=P\cdot24\\ \divideunder{7.2}{24}\amp=\divideunder{P\cdot24}{24}\\ 0.3\amp=P \end{aligned}$

$\begin{aligned}[t] 7.2\amp=0.3\cdot x\\ \divideunder{7.2}{0.3}\amp=\divideunder{0.3\cdot x}{0.3}\\ 24\amp=x \end{aligned}$

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