ASAP What statements are true regarding the given statement and diagram?

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

Arestaurant gives out a scratch-off card to every customer. the probability that a customer will win a prize from a scratch-off card is 25%. design and conduct a simulation using random numbers to find the experimental probability that a customer will need more than 3 cards in order to win a prize. justify the model for your simulation, and conduct at least 10 trials.

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left