What type of graph should an ecologist use to graph the relationship between a country’s population and the year

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity

The weights of bags filled by a machine are normally distributed with a standard deviation of 0.05 kilograms and a mean that can be set by the operator. at what level should the mean weight be set if it required that only 1% of the bags weigh less than 9.5 kilograms? round the answer to 2 decimal places.

Use 4 to 5 complete sentences, explain the concepts of beats and how beats are produces.