Which angles of the triangle measure 90 degrees?

I just need clarification

Adriveway is 40 yards long about how many meters long is it

Need ! the total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?

What rotation was applied to triangle def to create d’e’f’?