Identify whether each of these functions contains a minimum or a maximum

Given a(-12,5) and b(12,29) find the point that divides the line segment ab three-eighths of the way from a to b

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.

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?