Which polynomial is in standard form? a) 5x6 − 6x8 + 7x9 + 9 b) x2 + 2x3 − 3x4 + 3x5 c) 3x3 − 5x2 + 7x4 + 9x3 d) 2x5 − 6x3 + 3x2 − x

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.