Answer:
Option B is the better as it generates cash for 173 dollars rather than generating a cost $12.25
Explanation:
option A
monthly fee: 4.25
50 cent per check
total cost: 0.50x + 4.25
if 16 check are written per month:
0.50 (16) + 4.25 = 8 + 4.25 = 12.25
option b
the year has 12 months, during five months we will pay the service charge:
$12 x 5 month = $60
during the other 7 months, we accrued (earn) interest:
8,000 x 7 months x 5%
8,000 x 7/12 x 5% = 233,33
We receive 233 interest - 60 serive charge: 173 dollars
Option B is the better as it generates cash for 173 dollars rather than generating a cost $12.25