One T-shirt is sold for every 5 people who attend a concert. What is one way to write the unit rate in words?

Acertain population of bacteria demonstrates exponential growth doubles in size every 4 days. how long will it take the population to triple in size?

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.

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g