1. The problem: What number is 25% of 64? 2. Set up the proportion: $ \frac{n}{64} = \frac{25}{100} $ 3. Solve for $ n $: $$ n = \frac{25}{100} \times 64 $$ 4. Calculate: $$ n = 0.25 \times 64 = 16 $$ 5. Answer: 16 is 25% of 64. This matches your answer and is correct. Since you asked if these are right, the first problem is correct. If you want, I can check others one by one.