Milton Tropa Whatsapp: State whether the following scenario constitute a valid offer or not. Motivate your answer by referring to the most applicable requirement for a valid offer.

Beatrice complains to Zandi that she urgently need 10 coffee cups for her pop up coffee drive. Zandi sarcastically and jokingly comments that she will sell them at 0.50 cents each.
[24:46, 6/1/2021] Milton Tropa Whatsapp: In the following situation state whether a valid acceptance of the offer has taken place. Motivate your answer by referring to the requirements for a valid acceptance.

Vuyo offers to sell his Vegan shoes to Khaya for R 1000.00 excluding delivery cost. Khaya accepts the offer on condition that the delivery cost is included.