What is the sum of 27 and r

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

Acoffee shop orders at most $3,500 worth of coffee and tea. the shop needs to make a profit of at least $1,900 on the order. the possible combinations of coffee and tea for this order are given by this system of inequalities, where c = pounds of coffee and t = pounds of tea: 6c + 13t ≤ 3,500 3.50c + 4t ≥ 1,900 which graph's shaded region represents the possible combinations of coffee and tea for this order?