Question
Mrs Mark paid a total of $47 for 3a pencils and 4 files. Each pencil cost $3.
  1. Express the cost of 1 file in terms of a
  2. If a = 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 Mark paid a total of $47 for 3a pencils and 4 files. Each pencil cost $3.
  1. Express the cost of 1 file in terms of a
  2. If a = 4, how much did each file cost?