Point (3,6) is dilated by a scale factor of -1/3

Can someone with this? ! the answer choices are 1, 1.3, 1.45, and 1.9!

Is δ pmr similar to δ smn ? if so, which postulate or theorem proves these two triangles are similar?

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.