Question
PSLE
A foolscap costs $4 less than a highlighter. The total cost of 7 such foolscaps is $4b.
  1. Express the cost of 28 such foolscaps in terms of b.
  2. Express the cost of the highlighter in terms of b.
2 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

PSLE
A foolscap costs $4 less than a highlighter. The total cost of 7 such foolscaps is $4b.
  1. Express the cost of 28 such foolscaps in terms of b.
  2. Express the cost of the highlighter in terms of b.