Adriana collects rainwater in a large barrel that weights 10 pounds. when there are 10 gallons of water in the barrel, the total weight of the barrel and the water is 93.4 pounds. when there are 20 gallons of water, the total weight is 176.8 pounds. which equation and graph match this situation?

A20? -foot ladder is placed against a vertical wall of a? building, with the bottom of the ladder standing on level ground 19 feet from the base of the building. how high up the wall does the ladder? reach?

The table shows the distance traveled over time while traveling at a constant speed.

The head librarian at the library of congress has asked her assistant for an interval estimate of the mean number of books checked out each day. the assistant provides the following interval estimate: from 740 to 920 books per day. what is an efficient, unbiased point estimate of the number of books checked out each day at the library of congress?