Hey can somebody me? i know it seems easy but i forgot the process on how to do this. in advance! 1 1/2 - 1/2 = show your work so i understand

Which function has the same domain as y=2x

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

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m