Answer:
or 200.173913
Step-by-step explanation:

To find the mean or the avg you add up all the numbers you have and then divide by how many numbers you added together in this case 5


so the mean is 22, hope this helped you!
Answer:
Radius: 4.2cm
Diameter: 8.4cm
Step-by-step explanation:
Radius is half of the diameter.
In order to find the diameter, you would have to multiply the radius by 2.
In order to find the radius, you would have to divide the diameter by 2.
Answer:
5 hours
Step-by-step explanation:
there is no picture so i'm gonna just sya 5 because 5 + 15 is 30 .