Question
Mrs John paid a total of $45 for 3i pencils and 4 files. Each pencil cost $3.
  1. Express the cost of 1 file in terms of i
  2. If i = 4, 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 John paid a total of $45 for 3i pencils and 4 files. Each pencil cost $3.
  1. Express the cost of 1 file in terms of i
  2. If i = 4, how much did each file cost?