Question
One pen costs $i while one guide book costs 45¢ less than the pen.
  1. What is the cost of 5 pens and 1 guide book? Express your answer in terms of i in its simplest form. 
  2. Ivan wants to buy 5 pens and 1 guide book but is short of 25 cents. If the guide book costs $1.60, how much money does Ivan 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 $i while one guide book costs 45¢ less than the pen.
  1. What is the cost of 5 pens and 1 guide book? Express your answer in terms of i in its simplest form. 
  2. Ivan wants to buy 5 pens and 1 guide book but is short of 25 cents. If the guide book costs $1.60, how much money does Ivan have in dollars?