PLZ PLZ PLZ HELP PLZ PLZ 20 POINTS

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

14. (05.02 lc) what is the value of y in the solution to the following system of equations? (5 points) 2x + y = −4 5x + 3y = −6

Mr. vector door is buying two new cowboy hats all together the hats cost $75.12 the second heart cost twice as much as the first hat what is the price of the more expensive at round to the nearest hundredth