Question

Please help me I'm very confused

Answer 1

The answer to your question would be A. replace y with 9. why?? well here is how you would solve this problem
  1.    5+4y   when y=9 (first plug 9 into the y's spot)
  2.    5+4(9)    then multiply 4 times 9 (that's what 4(9) means) 
  3.    5+36      then add 
  4.   41

the answer to the equation is 41 but the answer to your problem is A.

Answer 2

Id say its between a and c. your best bet would be a since you have to plug in 9 for y.