Estimate a 15% tip on a dinner bill of $61.52

The equation respenting the left table is

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.

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?