1. There are tracks from three different animals in the rock. 2. One animal was chasing another animal.

3 . Two different animals died in this spot.

4. When the animals walked here the ground was wet.

5. One of the animals that died here had bony plates.

6. One of the animals that died here had sharp teeth.

7. The animal that had sharp teeth ate meat.
A. Observation

B. Inference

Does anyone know a lot about how to: - calculate mass of magnesium metal - calculate the actual yield of magnesium oxide - calculate the theoretical yield of mgo - calculate the percent yield of mgo - determine the percent yield of mgo - determine the average percent yield of mgo i had to do an online lab and its asking these questions but i have no idea where to start or how to be able to find these things. i can post the chart of the data from the lab or if you can tell me exactly how i can find each.

If a || b and e || f, what is the value of y ?

Exit what is the density of an object having a mass of 5.0 g and a volume of 45.0 cm3?