Question
Mrs Dylan paid a total of $42 for 2r pens and 8 files. Each pen cost $2.
  1. Express the cost of 1 file in terms of r
  2. If r = 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 Dylan paid a total of $42 for 2r pens and 8 files. Each pen cost $2.
  1. Express the cost of 1 file in terms of r
  2. If r = 3, how much did each file cost?