Question
Mrs Michael paid a total of $37 for 2i files and 4 pens. Each file cost $3.
  1. Express the cost of 1 pen in terms of i
  2. If i = 4, 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 Michael paid a total of $37 for 2i files and 4 pens. Each file cost $3.
  1. Express the cost of 1 pen in terms of i
  2. If i = 4, how much did each pen cost?