81,83,69,71,74,67,85,74,73,68,73,78 ,80,89,75 what is the mean, mode and median?

Pls me this is due today and i need i will make brainliest if you me answer correctly and i will report if you try to give me a dumb answer.

Atrucker had a load of grain containing 2 tons. she unloaded 1 ton and 1,200 pounds at the warehouse. how much grain does she still have left on the truck?

What is the range of the relation in the table below? x y –2 0 –1 2 0 4 1 2 2 0