7. Tessa bakes muffins in an oven. • The oven takes 10 minutes to warm up before the first tray of muffins can be baked.
• Each tray of muffins takes 20 minutes to bake.
How much time will have passed from when the oven starts warming up until Tessa finishes the third tray
of muffins?

A.30 mins
B.50 mins
C.60 mins
D70 mins

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.