(a) $10 \%$ of what is 5 ?
\[
\frac{5}{}=\frac{10}{100}
\]
\(\boxed{50}\) is the final answer.
Step 1 :We need to find a number such that 10% of it is equal to 5. This can be represented as an equation where we have 10% of a number (let's call it x) equal to 5.
Step 2 :Solving the equation gives us x = 50.0
Step 3 :\(\boxed{50}\) is the final answer.