What is the answer for n + 4.5 - 0.3n -3

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 table shows the balance of a money market account over time. write a function that represents the balance y(in dollars) after t years.

Which equation represents a direct linear variationa. y=x2b. y=2/5xc. y=1/xd. y=x+3