The question

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P

S.T

P

S.T

P

S.T

P

S.T

16. Find x ( by a) in the equation:

70

88

5

5

18

5

7

2

p =0.004

p = 0.002

1. Find c (by x) in the equation:

63

70

1

2

33

26

3

2

p = 0.001

9. Find b (by x) in the equation:

28

43

0

5

66

36

4

16

p = 0.001