Question
Mrs Mark paid a total of $50 for 3y pens and 4 files. Each pen cost $3.
  1. Express the cost of 1 file in terms of y
  2. If y = 3, how much did each file cost? 
3 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

Mrs Mark paid a total of $50 for 3y pens and 4 files. Each pen cost $3.
  1. Express the cost of 1 file in terms of y
  2. If y = 3, how much did each file cost?