The diameter of a circle is 10 units.
What is the radius of the circle?

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

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.

32a³b² 8ab² simplify the following expression.