Given
$45 per month
$75 one-time starting fee
Find cost to join the gym for one year.
In 1 year, there are 12 months, so we multiply $45 by 12.
and since $75 fee is one time, we just need to add it after the monthly fee, which means that the cost to join the gym for one year is
(45 × 12) + 75 = c
