the answer should be B
inside the first parenthesis, 7 on the top and 7 on the bottom cancel each other, so you have (6/5)^2
inside the second parenthesis, 7^0=1, the bottom 5^-3 moves to the top and becomes 5^3, (5^3)=5^9, 5^9 and 5^-9 makes 5^0, which is 1
so all you have left is (6/5)^2, which is 36/25
