A random sample of 30 seventh grade students shows that 12 of them own a dog. How many seventh grade students can you predict own a dog if the entire population of seventh graders is 400?

Create and solve a linear equation that represents the model, where squares and triangles are shown evenly balanced on a balance beam. assume the weight of a square is 1 unit and the weight of a triangle is unknown.

Which is a reasonable estimate of the amount of water in a small, inflatable pool used by children?

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.