Answer:
When x=8, y=-6. When x=10, y=0
Step-by-step explanation:

You can plug the given y value into the second equation to get:

Hope this helps!
Radius is 11cm
diameter is 22cm
Slope intercept form is y = mx + b
7 tickets for $5 means that 1 ticket costs 5/7 dollars
So for part a, the slope intercept form would be:

where x is the number of tickets, and y is the price.
For part b)
The slope intercept form is:

where x is the number of all you can ride wristbands you buy, and y is the total price.