Pls help due soon I will mark brainliesst!

Find the sum of the vectors
〈-5,2〉 and 〈6,9〉.Then find the magnitude and
direction of the resultant vector. Round
angles to the nearest degree and other values
to the nearest tenth

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.