Which expression is equivalent to the expression shown?

3 to the power of 7 x 3 to the power of -4

A. 3 to the power of 7 x 1/3 (The three in 1/3 is to the power of 4)

B. 3 to the power of 7 x 1/3 (The three in 1/3 is to the power of -4)

C. 3 to the power of -28

D. 3 to the power of 7 x (-3) times the power of 4

Idk, think it's A and please explain why because I don't understand.
Nvm I got the answer. But thanks if you tried to answer!

because its not ur topic and its not for is for homework not that.

step-by-step explanation:

there are 70 more legs than eyes at the dog show (196 – 126 = 70). dogs have two more legs than eyes, and humans have the same number of legs as eyes. thus 70 is twice the number of dogs at the show, so the number of dogs is half of 70, which is 35. to get the number of humans, subtract 35 from 63: 63 – 35 = 28.

step-by-step explanation: