Apply Properties of Integer Exponents Practice Test

Which expression is equivalent to $$\frac{2^{-3} \cdot 2^7}{2^{-1} \cdot 2^2}$$?

A scientist uses the expression $$5^{-2} \cdot 5^n \cdot 5^{-3}$$ to represent a measurement. For what value of $$n$$ will this expression equal $$5^2$$?