Bank charges monthly fee of $18.00 for unlimited transactions. Bank B charges a monthly fee of $3.50 only allows 20 free transactions a month. If you made
less than 20 transactions per month, how much money would you save in two years
by choosing Bank B?

I would save $348 in two years.

Step-by-step explanation:

Bank A charges a fixed monthly fee of $18 for unlimited transactions while bank B charges a fixed monthly fee of $3.50 but restricted to 20 transactions per month.

If someone expects to make less than 20 transactions per month, then they should select bank B.

If they select bank B, they would save $18.00 - $3.50 = $14.50 per month, and given two years have 24 months, they would save 24*$14.50 = $348 in two years.

a 10 percent increase

it's both, now can you answer my most recent question?