Answer:
r = 22.5
Step-by-step explanation:
R = D/2 = 45/ 2 = 22.5
We want to divide whole sand into scoops, so we have to divide 4/5 by 1/20. Lets do this

We know that if we want to divide 2 fraction we can multiply first by inverse of second fraction instead of dividing.,so:


scoops - its our result.
The first shaded triangle is 144 cm.
It's C) -3/4If you need the steps let me know. (:
Answer:
wanted points. sorry
Step-by-step explanation: