Staci has 13 pieces of rope, each piece is 5 feet long. what is the least number of pieces that she needs to tie together to make length that is at least 12 yards long?

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

Delbert keeps track of total of the total number of points he earns on homework assignments, each of which is worth 60 points. at the end of the semester he has 810 points. write an equation for delbert’s average homework score a in terms of the number of assignments n.

The graph represents f(x)=[x]+3. what is f(-2.2)?