Molly pays $17.25 per month for her phone service and spends an
average of $6.50 per month for long-distance calls. How much does her
phone service cost her in all each year?
a. $570
b. $23.75
c. $285
d. $129
First, we need to calculate how much she spends on phone service and long-distance calls combined each month:
$17.25 + $6.50 = $23.75
Then, we can multiply her monthly cost by the number of months in a year:
$23.75 x 12 = $285
Therefore, the correct answer is c. $285.