I need help with math (boys 14-16)

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15

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.

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 9 + 12x + 4x^2