Question
One stapler costs $k while one story book costs 90¢ less than the stapler.
  1. What is the cost of 4 staplers and 1 story book? Express your answer in terms of k in its simplest form. 
  2. Paul wants to buy 4 staplers and 1 story book but is short of 20 cents. If the story book costs $2.70, how much money does Paul 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 $k while one story book costs 90¢ less than the stapler.
  1. What is the cost of 4 staplers and 1 story book? Express your answer in terms of k in its simplest form. 
  2. Paul wants to buy 4 staplers and 1 story book but is short of 20 cents. If the story book costs $2.70, how much money does Paul have in dollars?