Question
One pen costs $m while one story book costs 60¢ less than the pen.
  1. What is the cost of 3 pens and 1 story book? Express your answer in terms of m in its simplest form. 
  2. Warren wants to buy 3 pens and 1 story book but is short of 30 cents. If the story book costs $1.80, how much money does Warren 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 $m while one story book costs 60¢ less than the pen.
  1. What is the cost of 3 pens and 1 story book? Express your answer in terms of m in its simplest form. 
  2. Warren wants to buy 3 pens and 1 story book but is short of 30 cents. If the story book costs $1.80, how much money does Warren have in dollars?