Question
PSLE
A notebook costs $4 less than a foolscap. The total cost of 3 such notebooks is $2x.
  1. Express the cost of 9 such notebooks in terms of x.
  2. Express the cost of the foolscap in terms of x.
2 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

PSLE
A notebook costs $4 less than a foolscap. The total cost of 3 such notebooks is $2x.
  1. Express the cost of 9 such notebooks in terms of x.
  2. Express the cost of the foolscap in terms of x.