What is the perimeter of the triangle?

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

Find an equation for the linear function which has slope -10 and x-intercept -7

X2 + y 2 = 36 x + y = 6 solve the system of equations.