Which expression is correctly developed to use the Product Rule of Exponents?(1 point)

Responses

6^2⋅7^3
6 squared times 7 cubed

10^8⋅10^8
10 superscript 8 baseline times 10 superscript 8 baseline

32^7
32 superscript 7 baseline

(5^2)^9

(5^2)^9