Answer correctly, will mark brainliest to best one. thanks

worth 100 points

If you shift the linear parent function, f(x)=x, up 13 units, what is the equation of the new function?

What is the measure of angle tvu shown in the diagram below

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.