Final answer:
The finance charge for Elena's billing cycle includes a $10 late fee plus $5 for each day the payment is late. For instance, if the payment is 4 days late, the charge is $30.
Step-by-step explanation:
To determine the finance charge for Elena's billing cycle, we would need specific information about the number of days the payment was late. Assuming Elena's payment was late and the $10 late fee applies, plus an additional $5 per day for each day the payment remains unpaid, the total finance charge would be calculated by the formula: Finance Charge = $10 + ($5 × Number of Days Late). For example, if Elena was late by 4 days, her finance charge would be $10 + ($5 × 4) = $10 + $20 = $30