Historians estimate that there were about 7 million people on the earth in 4,000 bce. now there are about 7 billion! we write 7 million as 7,000,000. we write 7 billion as 7,000,000,000. how many times more people are there on the earth now than there were in 4,000 bce? explain your reasoning

The magnitude, m, of an earthquake is defined to be m=log l/s, where i is the intensity of the earthquake (measured by the amplitude of the seismograph wave) and s is the intensity of a “standard” earthquake, which is barely detectable. what is the magnitude of an earthquake that is 1,000 times more intense than a standard earthquake? use a calculator. round your answer to the nearest tenth.

Two students were asked if they liked to read. is this a good example of a statistical question? why or why not? a yes, this is a good statistical question because a variety of answers are given. b yes, this is a good statistical question because there are not a variety of answers that could be given. c no, this is not a good statistical question because there are not a variety of answers that could be given. no, this is not a good statistical question because there are a variety of answers that could be given

Graph y = -|x| + 2. click on the graph until the correct one appears.