Ihave 20 cookies requires 1/3 cup of butter to make how many cups of butter do i need to make 12 cookies

In exponential growth functions, the base of the exponent must be greater than 1,how would the function change if the base of the exponent were 1? how would the fiction change if the base of the exponent were between 0and 1

The graph shown is the graph of which function?

Elena is paid a constant rate for each hour she works. the table shows the amounts of money that elena earned for various amounts of time that she worked.