y= the total cost of admission plus how many ride tickets a person purchases
B)
y= 1.25x + 9.5
C)
It is a$1.25 per ticket for the rides at the fair, so it would be 1.25 multiplied by the amount of tickets that are purchased (x). Spencer bought 17 tickets, so 17x1.25= 21.25 and it says that he spent a total of $30.75 at the fair, so 30.75-21.25=9.5, so that means the cost of admission is $9.50.
Well, to find the circumference of a circle, we can use the formula C=2r. So just plug in 3.5 into the formula. C=23.5. Multiply and we get C=21.99. which is about 22 So our answer would be C. 22 feet. Hope I helped!
r.