Marie pays $19.75 per month for her phone service and spends an
average of $6.00 per month for long-distance calls. How much does her
phone service cost her in all each year?
a. $309
b. $91.75
c. $237
d. $312
We need to add 19.75 + 6 to find the total that Marie spends monthly. This gives us 25.75. Next, we need to multiply this by 12, because there are 12 months in a year. This gives us 309, so the answer is A.