Muriel collects rainwater in a large barrel that weighs 20 pounds. when there are 10 gallons of water in the barrel, the total weight of the barrel and the water is 103.4 pounds. when there are 20 gallons of water, the total weight is 186.8 pounds.

The graph shows the distance y, in inches, a pendulum moves to the right (positive displacement) and to the left (negative displacement), for a given number of seconds x. how many seconds are required for the pendulum to move from its resting position and return? enter your answer in the box.

The graph shows the distance kerri drives on a trip. what is kerri's speed . a. 25 b.75 c.60 d.50

Aplane intersects a pris paralel to the base of the prism. the cross section is a polygon wth eight sides. how many sides does the base of the prism have? a. 10 b. 8 c. 7 d. 9