Question
One pen costs $g while one colouring book costs 90¢ less than the pen.
  1. What is the cost of 3 pens and 1 colouring book? Express your answer in terms of g in its simplest form. 
  2. Caden wants to buy 3 pens and 1 colouring book but is short of 20 cents. If the colouring book costs $2.50, how much money does Caden 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 pen costs $g while one colouring book costs 90¢ less than the pen.
  1. What is the cost of 3 pens and 1 colouring book? Express your answer in terms of g in its simplest form. 
  2. Caden wants to buy 3 pens and 1 colouring book but is short of 20 cents. If the colouring book costs $2.50, how much money does Caden have in dollars?