Question
The file cost thrice as much as the marker. Sean bought 1 file and 2 markers for $20.
  1. How much did one marker cost?
  2. How much did one file cost?
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

The file cost thrice as much as the marker. Sean bought 1 file and 2 markers for $20.
  1. How much did one marker cost?
  2. How much did one file cost?