Dakarai wrote the system of linear equations below. 7x+8y=28 and -3x+9y=-24 dakarai then wrote the coefficient matrix that represented this system. which matrix could she have written? 7 8 -3 9 7 -3 8 9 7 8 28 -3 9 -24 7 -3 28 8 9 -24

The perimeter of a stage is 116 feet. it is 17 feet wide. how long is it?

Which situation can be modeled by the inequality 5 + 10w ≥ 45? a. you start with $5 and save $10 a week until you have at least $45. b.you start with 5 baseball cards and purchase 10 cards every week until you have at most 45 cards. c.you start with 5 water bottles and purchases cases of 10 water bottles each until you have a total of 45 water bottles. d.you spend $5 plus $10 per week until you have less than $45.

Ametal rod is 2/5 meters long. it will be cut into pieces that are each 1/30 meters long. how many pieces will be made from the rod?