PLEASE HELP GIVING 15 FREE POINTS PLUS BRAINLIEST FOR CORRECT ANSWER!!!

Marley buys a pair of running shoes for $65.99. She also buys a pair of sandals for s dollars.
Which expression represents the average cost, in dollars, for each pair of shoes she bought?

PLEASE HELP GIVING 15 FREE POINTS PLUS BRAINLIEST FOR CORRECT ANSWER Marley buys a pair of running shoes for 6599 She also buys a pair of sandals for s dollars class=