Answer: 8+y
Step-by-step explanation:
the word "SUM" in maths means the answer to an "ADD".
It is always used with the word "AND" so you know which two (or more) numbers are being added together.
The SUM of 8 AND y, means add 8 and y together.
8
+
y
The annual premium is 5.07 x 7 = 35.49
The quarterly premium is 35.49 x .26 = 9.23
And the difference between the two payment options is 1.43
(Use the table in the question, it has all the information you need).