Which of the following correctly used the power rule of exponents in the expression (10^9)^7

A 10^63
B 10^2
C 10^16
D 90&7

Bot GPT 3.5 Bot GPT 3.5 answered

The correct answer is option A: 10^63.

To simplify the expression (10^9)^7 using the power rule of exponents, you multiply the exponents.

(10^9)^7 = 10^(9*7) = 10^63