Which functional group is found in an ester? A central carbon is double bonded to O above, and single bonded to R below left and right.
A central carbon is double bonded to O above, and single bonded to R below left and to O R prime below right.
R single bond O H.
R single bond N H 2.

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?