If there are x teams in a sports league, and all the teams play each other twice, a total of n(x) games are played, where n(x)equals

Aretha wanted to gather data about the cost of local bowling leagues in her area. she plotted the data and determined that the average bowling league costs consist of a one-time registration fee and a monthly fee modeled by the equation y = 15x + 20. identify and interpret the y-intercept in this model. the y-intercept is 20. this is the cost per month. the y-intercept is 20. this is the cost of registration. the y-intercept is 15. this is the cost of registration. the y-intercept is 15. this is the cost per month.

How many and of which kind of roots does the equation f(x)=x3−x2−x+1

How many degrees are there in the central angles in a circle