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.

Use the following statements to write a compound statement for the conjunction or disjunction. then find its truth value. p: an isosceles triangle has two congruent sides. q: a right angle measures 90° r: four points are always coplanar. s: a decagon has 12 sides. a) a right angle measures 90° or an isosceles triangle has two congruent sides; true. b) a right angle measures 90° and an isosceles triangle has two congruent sides; true. c) a right angle measures 90° and an isosceles triangle does not have two congruent sides; false. d) a right angle measures 90° or an isosceles triangle does not have two congruent sides; true.