Which human action can change the course of a waterway? 1.polluting 2.digging canals 3.mining coal 4.making tunnels for railroad passage

Amanda went into the grocery business starting with five stores. after one year, she opened two more stores. after two years, she opened two more stores than the previous year. if amanda expands her grocery business following the same pattern, which of the following graphs represents the number of stores she will own over time?

Events a and b are independent. the probability of a occurring is 2/5. the probability of b occurring is 1/4. what is p(a and b)?

How do newtons third law of motion demonstrates on a rollar coster