If
f
(
1
)
=
4
f(1)=4 and
f
(
n
)
=
f
(
n
−
1
)
+
2
f(n)=f(n−1)
2
+2 then find the value of
f
(
3
)
f(3).

Eiko is wearing a magic ring that increases the power of her healing spell by 30%30\%30%30, percent. without the ring, her healing spell restores health points. which of the following expressions could represent how many health points the spell restores when eiko is wearing the magic ring?