From the ground floor to the second floor, there are 3 staircases, to the third floor there are also 3 staircases and each classroom has 2 doors. How many choices of passageways are there in entering the classroom? a. 8

b. 9

c. 11

d. 18

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.

Aresearch group wants to find the opinions’ of city residents on the construction of a new downtown parking garage. what is the population of the survey downtown shoppers downtown visitors downtown workers city residents

Me d is also an option but i couldn't get it in the picture