Question
Mrs Lui paid a total of $45 for 2s notebooks and 4 pens. Each notebook cost $3.
  1. Express the cost of 1 pen in terms of s
  2. If s = 5, how much did each pen cost? 
3 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

Mrs Lui paid a total of $45 for 2s notebooks and 4 pens. Each notebook cost $3.
  1. Express the cost of 1 pen in terms of s
  2. If s = 5, how much did each pen cost?