When you raise an exponent to another exponent, you multiply the exponents. (7^2)^3 = 7^(2 x 3) = 7^6.
When you multiple 2 number with different exponents but same base, you add the exponents.
7^6 x 7^0 = 7^(6 + 0) = 7^6
And so....
7^6 is the answer!
(7 to the exponent of 6)