Find the midpoint of the line segment with endpoints (-9,-1,) and (7,0)

Explain the answer and how to do it

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.

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.