Answer:
$ 4.9 less if you pay the annual subscription
Explanation:
What we should do is calculate each of the options and then compare
option A:
worth $ 86 but with a 15% discount, therefore:
86 * 0.15 = 12.9
We deduct this from the original value:
86 - 12.9 = 73.1
Option A is for $ 73.10
option B:
each month is $ 6.50, so multiply by 12, the number of months of the year:
6.5 * 12 = $ 78
Option B comes out for $ 78
if we subtract both options we are left with:
78 - 73.1 = 4.9
that is, they are $ 4.9 less if you pay the annual subscription