Question
PSLE
A file costs $1 more than a notebook. The total cost of 4 such files is $3f.
  1. Express the cost of 12 such files in terms of f.
  2. Express the cost of the notebook in terms of f.
2 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

PSLE
A file costs $1 more than a notebook. The total cost of 4 such files is $3f.
  1. Express the cost of 12 such files in terms of f.
  2. Express the cost of the notebook in terms of f.