Anthony owns a small business selling ice-cream. He knows that in the last week 7 customers paid cash, 40 customers used a debit card, and 32 customers used a credit card. Based on these results, express the probability that the next customer will pay with a debit card or a credit card as a percent to the nearest whole number.

33% of college students say they use credit cards because of the rewards program. you randomly select 10 college students and ask each to name the reason he or she uses credit cards. find the probability that the number of college students who say they use credit cards because of the rewards program is (a) exactly two, (b) more than two, and (c) between two and five inclusive. if convenient, use technology to find the probabilities.

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

We just started the introduction into circles and i have no idea how to do this.