Mrs Tham bought z bottles of oil at $7 each. She gave the cashier $50.
[a]Find the change Mrs Tham received in terms of z.
(b) If z = 3, how much change did Mrs Tham receive?

Respuesta :

Answer:

She bought 3 bottles of oil, and that would be a total of 21$ of oil so she should have recieved 29.00$ back so no change

Step-by-step explanation: