Anybody know the answer to this? I’ve been having a hard time

2.39 inches (rounded)

Step-by-step explanation:

1.) Divide circumference (15) by 3.14 to get the diameter (~4.78, or 4.77707006...)

2.) Divide diameter by 2 for the radius (~2.39, or 2.38853503...)

40 degrees

Step-by-step explanation:

The answer is 40 degrees. Angle x and angle y form vertical angles, therefore x = y. Angle y forms a straight line with the 80° angle and the 60° angle which means that 80° + 60° + y = 180°. 140° + y = 180°. y= 180° - 140°. y = 40°. As mentioned earlier: x = y, so x = y = 40°.

Hope this helps