The membership is $19.99 per month . If a person wants to use it for 15 years,
we need to first find how many month we have in 15 years:
Knowing that 1 year = 12 months, then
15 years = 15 * 12 months = 180 months
Now, to find how much is spent in these many months, wemultiply 19.99 times 180:
Tota expense + $19.99 * 180 = $3598.20
