Answer to 1+4=5, 2+5=12, 3+6=21, 8+11=?

Evaluate the given expression if m=45 |-3m|

Which rational number could be graphed between -4 and -5

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