Question
One stapler costs $r while one colouring book costs 75¢ less than the stapler.
  1. What is the cost of 2 staplers and 1 colouring book? Express your answer in terms of r in its simplest form. 
  2. Julian wants to buy 2 staplers and 1 colouring book but is short of 30 cents. If the colouring book costs $1.70, how much money does Julian 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 stapler costs $r while one colouring book costs 75¢ less than the stapler.
  1. What is the cost of 2 staplers and 1 colouring book? Express your answer in terms of r in its simplest form. 
  2. Julian wants to buy 2 staplers and 1 colouring book but is short of 30 cents. If the colouring book costs $1.70, how much money does Julian have in dollars?