Petunia bought two plants. She placed the first plant, which was 20 inches tall, on the windowsill. She noticed that the plant was growing at the rate of 1 inch per week.

She placed the second plant, which was 5 inches tall, on the coffee table. She noticed that it was growing at the rate of 2 inches per week.

What is (28 + 7 + 6 + 3) x 1/2 show your work

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning

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.