Answer:
The average sales difference between both shops is $28.14
Step-by-step explanation:
36+41+63+42+48+50+53 = 333, 333 divided by the number of numbers added (333/7) = 47.57
70+73+78+80+75+85+69 = 530, divided by the number of numbers added (530/7) = 75.71
75.71-47.57 = 28.14
