I need a answer fast pls help

2.5

Step-by-step explanation:

The radius is any line from the middle of the circle to the end of the circle. The diameter is a chord which is a line going from any end of the circle to the other end but the diameter crosses though the point which is in the middle.

So, you split the diameter in half. 5/2 = 2.5

for the first one youll have to put the even numbers from 70-81. for the second one u could use clue C because it gives us the most information about our number like the other person :)

~batmans wife dun dun dun...aka ~serenitybella