Class VII

Expansion of -8(3a + 5b) yields
  1. -24a - 40b
  2. -22a + 80b
  3. 20a - 30b
  4. -24a - 41b
In simplified form ( 30 + 40 + 50 )0 is equals to
  1. 12
  2. 3
  3. 12
  4. 1
The value of 30 is ________ .
  1. 0
  2. 3
  3. 1
  4. None of these
Which property should be used to solve this equation? x/3 = 10
  1. Addition property of equality
  2. Subtraction property of equality
  3. Multiplication property of equality
  4. Division property of equality
The value of 21b-32 + 7b – 20b is
  1. 48b- 32
  2. -8b - 32
  3. 8b - 32
  4. 28b -52
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