Answers

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Here are the answers:

Number

 

  1. 270
  2. 124.5
  3. 45.6
  4. 83.74
  5. 0.24
  6. 304
  7. 479.5
  8. 0.45
  9. 151.5
  10. 0.25
  11. 73
  12. 35.8
  13. 8430
  14. 314.3
  15. 3

 

Exercise 2

 

1.      0.8

2.      21

3.      1.8

4.      0.4

5.      28

6.      2.4

7.      8.4

8.      0.15

9.      4.6

10.  0.075

 

 

Algebra

 

  1. 5x
  2. 6x
  3. 12y2
  4. 8y
  5. 8x
  6. 25y2
  7. 2x
  8. 2x
  9. 2y
  10. 2y

 

Exercise 2

 

  1. 9
  2. 25
  3. 4
  4. 16
  5. 18
  6. 13
  7. 26
  8. 17
  9. 72
  10. 15