Angela goes to the garden. there is a fountain. a circular fountain with a 10m radius lies alone in the center of a circular park with a 200 m radius. calculate the total walking area available to the park visitors.

Delbert keeps track of total of the total number of points he earns on homework assignments, each of which is worth 60 points. at the end of the semester he has 810 points. write an equation for delbert’s average homework score a in terms of the number of assignments n.