Which expression is equivalent to 7 to the 3 power × 7 to the −5 power

A: 72

B: 77

C: 1 over 7 to the 2nd power

D: 1 over 7 to the 7th power

C: 1 over 7 to the 2nd power

Step-by-step explanation:

The question is:

When multiplying exponents, the base stays the same, while the power is added. In this question, the powers are 3 and -5.

The exponent will become:

Since the power is negative, it is improper. The negative can be removed by moving the power down and making it a fraction over 1.

The answer is , also written as "1 over 7 to the 2nd power".