Question
One notebook costs $z while one story book costs 50¢ less than the notebook.
  1. What is the cost of 3 notebooks and 1 story book? Express your answer in terms of z in its simplest form. 
  2. Henry wants to buy 3 notebooks and 1 story book but is short of 30 cents. If the story book costs $2.60, how much money does Henry 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 $z while one story book costs 50¢ less than the notebook.
  1. What is the cost of 3 notebooks and 1 story book? Express your answer in terms of z in its simplest form. 
  2. Henry wants to buy 3 notebooks and 1 story book but is short of 30 cents. If the story book costs $2.60, how much money does Henry have in dollars?