PLEASE HELP The cost in dollars C(x), where x is the number of miles driven, of renting a car for a day is C(x)=0.55x+36. What is the independent variable and its units? (dollars, miles, dollars per miles, miles per dollar) - select the correct units What is the dependent variable and its units? (dollars, miles) - select the correct units

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.