Find the measure of the numbered angle.

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a
220
b
110
c
90
d
180

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.

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?