EXPLANATION
Since the circumference of the circle is 9.42, we can get the diameter by applying the following relationship:
[tex]Circumference=2\pi r=2\pi\frac{d}{2}=\pi d[/tex]
Isolating the diameter:
[tex]Diameter=\frac{Circumference}{\pi}[/tex]
Plugging in the numbers:
[tex]Diameter=\frac{9.42}{3.14}=3[/tex]
Therefore, the diameter is equal to 3 inches.
