Answer:

Step-by-step explanation:
1. 
2. 
3. b = 
Can't be simplified.
Step-by-step explanation:
3x-5=8x-60
55=5x
x=11
Range is greater for the 13-14 year olds.
Answer:
y = 36
Step-by-step explanation:
Everything in x-column is multiplied by 2, so everything in y-column is divided by 2 as per the inverse function.
=> 72/2
=> 36