Evaluate m^2+mtp if m=3 , t=4, and p=7

Which of these triangle pairs can be mapped to each other using two reflections?

Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?

Cd is the perpendicular bisector of both xy and st, and cy=20. find xy.