Answer:

Step-by-step explanation:


This is for the first one
HL is the radius which is half of the diameter....lso 24/2 = 12
r = 1/2(121) is the answer for this one since radius is 1/2 of the diameter
Answer:
I Think that it is 7.5
Step-by-step explanation:
Hope that his helps you :-)
3wx^2 it is the same as 5-2