Answer:
sry i dont know
Step-by-step explanation:
Answer:
2(5+2)
Step-by-step explanation:
I think this is right!
The domain are the numbers in the X coordinates. So it would be -3, -1, 0, 1
The range is the numbers that are the Y coordinates. -5, 1, 4, 7
Write an equation system where x=cost of notebook, y=cost of pencil, z=cost of pen.
3x+4y+2z=5.45
5x+2y+3z=7.80
2x+5y+4z=7.15
Solve this system and you get x= $1.25 per each notebook, y= $0.25 per each pencil, z= $0.35 per each pen