The exponential function

g, represented in the table, can be written as

g(x)=a⋅b

x g(x)

0 9

1 15

Complete the equation for g(x)

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.

Tom wants to order tickets online so that he and three of his friends can go to a water park the cost of the tickets is 16.00 per person there is also a 2.50 one-time service fee for ordering tickets online write an expression in term of n that represents the cost for n ordering tickets online

Is experimental probibilty the same as the observed frequency in math? i need the answer asap!