Answer:
10.4 in.
Explanation:
To find the radius of a circle from the circumference, divide the circumference by pi, then, divide the quotient by 2.
65 is the circumference of Joe's bicycle.
65 ÷ 3.14 = 20.7006369427
20.7006369427 ÷ 2 = 10.3503184714
10.3503184714 ≈ 10.4
Therefore, 10.4 is the radius of the wheel rounded to the nearest tenth.