Math project i really need with an explanation step process ! i need to find percent change!

Select the correct answer from the drop-down menu. this graph represents the inequality x+2< 4,2x> 3,x+6< 12,2x> 12

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.

Matt had 5 library books. he checked out 1 additional book every week without retuening any books. whats the matching equation