Answer:
10
Step-by-step explanation:
the range is the difference between the biggest and the smallest number
55-45=10
350 / 7 = 50
50 * 2 = 100
100 new members
100 / 10 = 10
10 * 3 = 30
30 are new female members
Answer is a look at y and it is the only answer that makes sense due to increase exponentionally in y while X is in 3a
105/7 = 15
15x4= 60
105:60
I think