### Instruction: Sixteen is 64$\%$ of what number?### Response: To solve this problem, I need to find a number x such that 16 is 64$\%$ of x.
I can write this as an equation: 16 = 0.64x.
To isolate x, I need to divide both sides by 0.64.
This gives me x = 16/0.64 = 25.
So 16 is 64$\%$ of 25.