Not sure f either of my answers would satisfy the question in the second picture

Combine the information in the problem and the chart using the average balance method to solve the problem.

Julie goes to the sports store and spends $40.50 before tax. she buys a pair of shorts for $21.75 and 3 pairs of socks that each cost the same amount. how much does each pair of socks cost? $$

Find the distance between (7,-6) and (-3,-9)