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level 3
a) (x+8)(x-2)
b) (x+7)(x-7)

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

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.

Me find the value of x each figure.