Question
Mrs Glen paid a total of $50 for 3a files and 8 pens. Each file cost $3.
  1. Express the cost of 1 pen in terms of a
  2. If a = 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 Glen paid a total of $50 for 3a files and 8 pens. Each file cost $3.
  1. Express the cost of 1 pen in terms of a
  2. If a = 4, how much did each pen cost?