A phone plan costs £12 a month plus 5p per megabyte. How much does it cost in a month when 140 MB are used?

Answer and explanation

Correct answer: D. £19

  1. Step 1: Data cost: .
  2. Step 2: Total: .
Answer
£19.
Why not the others: £7: the £12 fee was missed. £82: the 5 was not converted to pence. £12.70: only 14 MB was charged.

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