Which functions are even? Check all of the boxes that apply. f(x)=x*- x?
f(x) = x+ - 3x + 2
10) VG-2)
f(x) = |x|

Two cars which are 40 miles apart start moving simultaneously in the same direction with constant speeds. if the speed of the car which is behind is 56 mph and the speed of the other car is 48 mph, how many hours will it take for the car which is behind to catch up the car ahead of it?

What percent of 18 is 24? and plz explain thx.

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two