Thanks for the help ;)

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)

Which situation can be modeled by the inequality 5 + 10w ≥ 45? a. you start with $5 and save $10 a week until you have at least $45. b.you start with 5 baseball cards and purchase 10 cards every week until you have at most 45 cards. c.you start with 5 water bottles and purchases cases of 10 water bottles each until you have a total of 45 water bottles. d.you spend $5 plus $10 per week until you have less than $45.

Which of the following constants can be added to x2 - 3x to form a perfect square trinomial?