Need help with these 2 questions pls help me will mark brainiest

If f(x)=x^3 and g(x)=2x+7 when g(x)=-5

What is the order of magnitude for the number of liters in a large bottle of soda served at a party

!! 10 ! a westbound jet leaves central airport traveling 635 miles per hour. at the same time, an eastbound plane departs at 325 miles per hour. in how many hours will the planes be 1900 miles apart?