Julie has 16 thousand count + 16000 cows how many cows does she have left

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

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.

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8