Final answer:
The down payment Lillian made for the guitar was $114.00, calculated by taking 15% of the total cost of the guitar which was $760.00.
Step-by-step explanation:
Lillian's down payment for the guitar purchased from Smash Music can be calculated using the given percentage which is 15%. As the total cost of the guitar is $760.00, the down payment which is 15% of $760.00 can be calculated as follows:
Down payment = 15/100 * $760.00
Upon performing the above calculation, the resulting down payment amount comes to $114.00. Therefore, Lillian's down payment for the guitar was $114.00.
Learn more about Down Payment Calculation