1 and one eighths times one fourth

Will give find an equivalent function to f(x)=5(2)^3x. the 5(2)^3x means 5(2) to the 3x power answer choices: a: f(x)=125^x(8)^x b: f(x)=10^2x c: f(x)=40^x d: f(x)=5(8)^x

For what value of (y) is 3^3/3^y =1/9

Are the corresponding angles congruent? explain why or why not.