Help!!

What equation is equal to this 1/2 (x + 6) =
A.1/2 • x + 3
B.2 • x + 3
C.1/2 • x + 6
D.(1/2 • x) + 3

Which expression is equivalent to the following expression: (There are 2 answers)
5.3 – y + 4.2


A.y - 9.5

B.–y + 9.5

C.9.5 – y

D.4.2 - y

E.5.5 + y + 4.2