Sorry Fam I Tried Hope You Get The Answr Your Looking For!
It's

because this choice made the most since.
I think you mean circumference, which is equal to = 2πr
Answer= x^2-4
I hope this helps.
15.50+1.50x =26
1.50x = 10.50
x = 7
answer: he can ride 7 in one day