If f(x)= (-2)/3 x+9 and g(x)=5x^2-2x+9, find the following. SHOW ALL WORK PLEASE <3

It's NOT a MULTIPLE CHOICE QUESTION! You must solve a-e SEPERATELY.

a. f (-18) =

b. g (6) =

c. f (9) + g (-3) =

d. f (-15) – g (2) =

e. f (8) + g(4)=
Please help me out. This is for my notes, thank you.
Please don't reply if you don't KNOW the answers. Thank you.

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

Solve x+3y=6 and 4x-6y=6 by elimination . show work !

Aroulette wheel has 38 slots in which the ball can land. two of the slots are green, 18 are red, and 18 are black. the ball is equally likely to land in any slot. the roulette wheel is going to be spun twice, and the outcomes of the two spins are independent.the probability that it lands one time on red and another time on black in any order is(a) 0.5 (b) 0.25 (c) 0.4488 (d) 0.2244