What is the distance between point P and point R?

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.

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2