Question

Which expression is equivalent to 7^3 ⋅ 7^−5? A.7^2 B.7^7 C.1 over 7 to the 2nd power D.1 over 7 to the 7th power

Answer 1

$7^3\cdot7^{-5}=7^{-2}=\dfrac{1}{7^2}$