Question
PSLE
A glue costs $3 less than a ruler. The total cost of 9 such glues is $5f.
  1. Express the cost of 27 such glues in terms of f.
  2. Express the cost of the ruler 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 glue costs $3 less than a ruler. The total cost of 9 such glues is $5f.
  1. Express the cost of 27 such glues in terms of f.
  2. Express the cost of the ruler in terms of f.