PLS HELP M! THIS IS DUE TODAY! plz don't answer if you don't know the answer or I will report

Ashton is saving money to buy a new bike. He needs $300, but he has only saved $21 so far. What percent of the money he needs has he saved already?

Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

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.

Solve this problem! extra ! 3025/5.5 = a/90.75 / = fraction