Question
PSLE
A file costs $4 more than a glue. The total cost of 7 such files is $5s.
  1. Express the cost of 14 such files in terms of s.
  2. Express the cost of the glue in terms of s.
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 more than a glue. The total cost of 7 such files is $5s.
  1. Express the cost of 14 such files in terms of s.
  2. Express the cost of the glue in terms of s.