Carrie's catering is having a special on their box lunches. the minimum purchase is 13 boxes for $91. each additional box is $5. if x represents the number of boxes over the minimum, which of the following equations represents the cost of box lunches during this special?

Let the mean of the population be 38 instances of from 6" - 9" hatchings per nest, and let the standard deviation of the mean be 3. what sample mean would have a confidence level of 95% or a 2.5% margin of error?

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

Ascientist has discovered an organism that produces five offspring exactly one hour after its own birth, and then goes on to live for one week without producing any additional offspring. each replicated organism also replicates at the same rate. at hour one, there is one organism. at hour two, there are five more organisms. how many total organisms are there at hour seven? 2,801 19,531 19,607 97.655