F(x) = 2x^3 g(x) = x-3

find f(2)
find g(4)
find (f+g) (x)

After two years, how much has been paid into interest?

There were 816 people at a concert when a band started to play. after each song, only half the people stayed to hear the next song. how many people were left at the concert after x songs? write a function to represent this scenario.

What are the domain and range of the function f(x)=2^x+1