The concentration, in parts per million, of a type of antibiotic in a human’s bloodstream after h hours can be modeled by the polynomial function c(h) = -0.09h2 3.5h 8. what is the concentration of the antibiotic after 3 hours?

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.