Question
PSLE
A file costs $4 less than a puncher. The total cost of 8 such files is $3y.
  1. Express the cost of 16 such files in terms of y.
  2. Express the cost of the puncher in terms of y.
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 $4 less than a puncher. The total cost of 8 such files is $3y.
  1. Express the cost of 16 such files in terms of y.
  2. Express the cost of the puncher in terms of y.