Need help with my IXL

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

X-intercept=-5 y-intercept=2 the equation of the line is

Which spreadsheet would be used to compute the first nine terms of the geometric sequence a^n=32•(1/2)n-1