Question
One eraser costs $f. One file costs $(f + 15). One colouring book costs $5f.
  1. Tom bought 6 erasers, 3 files and 1 colouring book. How much did he spend? Simplify your answer in terms of f.
  2. If f = 4, how much did Tom spend altogether?
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

One eraser costs $f. One file costs $(f + 15). One colouring book costs $5f.
  1. Tom bought 6 erasers, 3 files and 1 colouring book. How much did he spend? Simplify your answer in terms of f.
  2. If f = 4, how much did Tom spend altogether?