The square of Mark's age 3 years ago is 6 times the age he will be in 9 years. What is his age now? 15
12
9

Which of the following answers is 7/9 simplified? 7/9 2/9 11/9 2/7

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.

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x