In a cafeteria, 100 milk cartons were put out for breakfast. after breakfast there were 40 milk cartons left. what is the ratio of milk cartons remaining to total milk taken ?

At 6 1/2 cents per pound of string beans how much does 7 pounds cost

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.

X+y=-4 x-y=2 use elimination with adding and subtraction