Step 1: Evaluate the inner square root. The question asks to work out the square root of $\sqrt{10000}$. This means we need to calculate $\sqrt{\sqrt{10000}}$. First, we find the value of the inner square root: $$ \sqrt{10000} $$ Since $100 \times 100 = 10000$, we have: $$ \sqrt{10000} = 100 $$ Step 2: Evaluate the outer square root. Now, we take the square root of the result from Step 1: $$ \sqrt{100} $$ Since $10 \times 10 = 100$, we have: $$ \sqrt{100} = 10 $$ The final answer is $\boxed{10}$. Question 16 is incomplete. It states "A housing company bought 8112 iron sheets from 100" but does not ask a question or provide enough information to perform a calculation. Send me the next one 📸