Please look at the image

Perform the required operations on the following functions given: f(x)= 3-x; g(x)= -2x find g[f(x)]

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

Tony is charged $ 50 and additional $0.15 per miles for renting a car. a) represent the cost of renting a car with an equation,and the determine the cost if he drove it70 miles.b) what would be the cost of a car rental if the car was driven 250 miles? show work