Question
One notebook costs $k while one colouring book costs 80¢ less than the notebook.
  1. What is the cost of 5 notebooks and 1 colouring book? Express your answer in terms of k in its simplest form. 
  2. Ahmad wants to buy 5 notebooks and 1 colouring book but is short of 30 cents. If the colouring book costs $1.80, how much money does Ahmad have in dollars?
3 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

One notebook costs $k while one colouring book costs 80¢ less than the notebook.
  1. What is the cost of 5 notebooks and 1 colouring book? Express your answer in terms of k in its simplest form. 
  2. Ahmad wants to buy 5 notebooks and 1 colouring book but is short of 30 cents. If the colouring book costs $1.80, how much money does Ahmad have in dollars?