Has someone gotten a star in maths I need some genuine and honest tips

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

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

Find the solution of each of the following.