An author has 18 pages to send to a publisher. the author has only small envelopes and can't fit all the pages into a single envelope. it ends up taking 6 envelopes to hold all the pages. if each envelope has the same number of pages in it, how many pages are there in each envelope?

What does the relationship between the mean and median reveal about the shape of the data

Suppose that a households monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hundreds of cubic feet, hcf). when graphed, the function gives a line with slope of 1.65. if the monthly cost for 13 hcf is $46.10 what is the monthly cost for 19 hcf?

Can someone factor this fully? my friend and i have two different answers and i would like to know if either of them is right. you in advance. a^2 - b^2 + 25 + 10a