Action movies make up 85% of devon's movie collection. if he has 20 movies , how many action movies are in devon's collection? explain your reasoning.
plz me out. ; )

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.

What is the approximate value of  x  in the equation below.–3.396–0.7080.3040.955

Solve the equation: x - 9 = -6 + 5 a. 21 b. 7 c. 14 d. 2