Can someone help me ASAP because this is due at 9 PM. And please be specific about which ones are the answers. Please and Thank You. I Appreciate it a lot.

Write a story that matches with the expression 42x-5 pls hurry

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

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.