Can someone help me plz

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.

If f(x) = 6x – 4, what is f(x) when x = 8? a2 b16 c44 d52

Out of 50 students surveyed, 16 have a dog. based on these results, predict how many of the 280 students in the school have a dog.