(c) $10 \%$ of what is $\$ 15$ ?
Final Answer: \(10 \%\) of \(150\) is \(\$ 15\). So, the answer is \(\boxed{150}\).
Step 1 :We need to find a number such that 10% of it is equal to $15. This can be represented as an equation: \(0.10 * x = 15\).
Step 2 :We can solve this equation for x to find the answer.
Step 3 :\(x = 150.0\)
Step 4 :Final Answer: \(10 \%\) of \(150\) is \(\$ 15\). So, the answer is \(\boxed{150}\).