Cell phone plan A costs $30 per month, and you have to buy a new phone for $800.

Cell phone plan B costs $80 per month, and you get a free phone.

After how many months will both plans cost the same?

months

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.