On friday , 2 classes went on a feild trip. if the 3 other classes are left at the school, and there are 20 students per class, how many students are left at the school?

Is it true that product of 3 consecutive natural numbers is always divisible by 6? justifyyour answer

The random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x

David estimated he had about 20 fish in his pond. a year later, there were about 1.5 times as many fish. the year after that, the number of fish increased by a factor of 1.5 again. the number of fish is modeled by f(x)=20(1.5)^x. create a question you could ask that could be answered only by graphing or using a logarithm.