Finding the mid point of each of the pair of points. Please help

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.

Solve for x. −3/4(x+2)=6 enter your answer in the box

If 3 3/4 lb. of candy costs 20.25 how much would 1lb. of candy cost