Ruling on working as a delivery driver for companies like uber eats, deliveroo etc where the job role is to deliver food/drink which may be halal or haram

Question:

Is it permissible to work as a delivery driver for companies like uber eats, deliveroo etc where the job role is to deliver food/drink which may be halal or haram?

Ruling on Qurbani animal whose price is determined by weight after it has been slaughtered

Question:

If someone orders a sheep for Qurbani (sacrifice) where the price is determined by weight after it has been slaughtered, will the Qurbani be valid?