1. what is 10% of 20? 2.what is 5% of 10?
3. what is 25% of 100?
4. what is 15% of 50?
5. what is 30% of 60?
6. what is 50% of 80?
7. what is 20% of 120?
8. what is 35% of 70?
9. what is 75% of 150?
10. what is 60% of 90?
11. what is 40% of 40?
12. what is 55% of 110?
13. what is 80% of 130?

1. what is 10% of 20?      = 20 * 0.1 = 2

2.What is 5% of 10?        = 10 * 0.05 = 0,5

3. What is 25% of 100?   = 100 * 0,25 = 25

4. What is 15% of 50?     = 50 * 0.15 = 7,5

5. What is 30% of 60?     = 60 * 0,3 = 18

6. What is 50% of 80?     = 80 * 0,5 = 40

7. What is 20% of 120?   = 120 * 0,2 = 24

8. What is 35% of 70?     = 70 * 0,35 = 24.5

9. What is 75% of 150?   = 150 * 0,75 = 112.5

10. What is 60% of 90?   = 90 * 0,6 = 54

11. What is 40% of 40?   = 40 * 0,4 = 16

12. What is 55% of 110? = 110 * 0.55 = 60.5

13. What is 80% of 130? = 130 * 0,80 = 104

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Step-by-step explanation:

dc=6 square root of 3 and ac is 12 square root 3

c and d

step-by-step explanation:

square root of 3/2 = 18/c

cross multiply to get 18*2=√3*c

36/√3 * √3/√3 = c

c= 36*√3/3

c=12√3