Question
PSLE
A pencil costs $2 less than a file. The total cost of 7 such pencils is $4z.
  1. Express the cost of 28 such pencils in terms of z.
  2. Express the cost of the file in terms of z.
2 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

PSLE
A pencil costs $2 less than a file. The total cost of 7 such pencils is $4z.
  1. Express the cost of 28 such pencils in terms of z.
  2. Express the cost of the file in terms of z.