Answer:
1
Step-by-step explanation:
80% = 0.80
0.80 x 5 = 4
5 - 4 = 1
The first one is a common multiple and I don't think I can see the rest of question two.
I’m guessing 8 is the radius so the formula is 2pi(r)
And when you plug in 8 into r you have 2pi(8)
When you solve it you should get 50.24
Can you pls mark brainleist