Final answer:
To find the total cost of using credit for the year, add up the finance charges and fees. The total cost is $97.16.
Step-by-step explanation:
To calculate the total cost of using credit for the year, we need to add up all the finance charges and fees that Lili paid. First, let's calculate the total finance charges by adding up the individual amounts: $2.68 + $7.28 + $9.22 + $3.98 = $23.16. Next, let's calculate the total fees by adding the membership fee and the balance transfer fee: $45 + $29 = $74. Finally, we can calculate the total cost by adding the finance charges and fees: $23.16 + $74 = $97.16.