Which of the following expressions is equal to 5 to the power of 6 over 5 to the power of 2 ?
a.5 * 5* 5 * 5
b.5 * 5 *5
c. 1 over 5*5*5*5
d.3

A.  To solve for 5^6/5^2 subtract the numerators exponent by the denominators exponent.  So 6-2, which leaves 5^4 in the numerator so the answer is 5^4 or 5*5*5*5