Question
PSLE
A ruler costs $2 more than a file. The total cost of 7 such rulers is $3f.
  1. Express the cost of 14 such rulers in terms of f.
  2. Express the cost of the file 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 ruler costs $2 more than a file. The total cost of 7 such rulers is $3f.
  1. Express the cost of 14 such rulers in terms of f.
  2. Express the cost of the file in terms of f.