(b) $9 \%$ of what is 13.5 ?
(c) $10 \%$ of what is $\$ 15$ ?
(d) $1 \%$ of what is $\$ 8$ ?
(e) $18 \%$ of what is 9 ?
(g) $25 \%$ of what is 11 ?
(h) $12.5 \%$ of what is $11 ?$

Answer

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Answer

$\boxed{150}$ is the original amount before 9% was taken.

Steps

Step 1 ：Translate the problem into a mathematical equation: 0.09 * X = 13.5

Step 2 ：Rearrange the equation to solve for X: X = 13.5 / 0.09

Step 3 ：Calculate the value of X: X = 150.0

Step 4 ：$\boxed{150}$ is the original amount before 9% was taken.