Question
One stamp costs $k. One file costs $(k + 15). One textbook costs $4k.
  1. Michael bought 7 stamps, 3 files and 1 textbook. How much did he spend? Simplify your answer in terms of k.
  2. If k = 16, how much did Michael spend altogether?
4 m
(a)

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(b)

Click button first when a symbol is required. X

One stamp costs $k. One file costs $(k + 15). One textbook costs $4k.
  1. Michael bought 7 stamps, 3 files and 1 textbook. How much did he spend? Simplify your answer in terms of k.
  2. If k = 16, how much did Michael spend altogether?