（・□・；）this is so hard (dont answer if you dont know)

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)

The school that imani goes to is selling tickets to the annual dance competition. on the first day of the ticket sales the school sold 7 adult tickets and 5 child tickets for a total of $96. the school took in $40 on the second day by seling 3 adult tickets . find the price of an adult ticket and the price of a child ticket. solve by using substitution elimination college prep algebra math heres the 2 equations i came up with 7x+5y=96 and 3x+2y= -40 show all workiv be stuck on this.

Find the value of x in each case. give reasons to justify your solutions! d q ∈ pr