Which expression is equivalent to (8^2)^-4

You are measuring the dimensions of the floor in your bedroom because you are planning to buy new carpet. which unit of measure is the most appropriate to use in this situation?

1. find the area of the unshaded square 2. find the area of the large square 3. what is the area of the frame represented by the shaded region show

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b