Kylie spends a winter day recording the temperature once every three hours for science class. At 9 am, the temperature was -5.9°F. Between 9am and noon, the temperature increased by 14.3°F. Between noon and 3pm, the temperature went down 10.8°F. Between 3pm and 6pm, the temperature decreased by 8.4°F. What was the temperature at 6pm?

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.