Is the relationship between the number of tickets sold and the number of hours proportional

Aplane flies around trip to philadelphia it flies to philadelphia at 220 miles per hour and back home with a tailwind at 280 miles per hour if the total trip takes 6.5 hours how many miles does the plane fly round trip

What is the value of x in this triangle? a. 53° b. 62° c. 65° d. 118°

Simplify each expression. use positive exponents. show work . (x –2 y –4 x 3 ) –2