Answer:
i guess its 1...
Step-by-step explanation:
R=23 because its slope the formula is Y-Y/X-X
Answer: G
Step-by-step explanation: the rate of change is constant, making it a proportional relationship
1. X=2+1/2y+1/2z
2. X=-1+2y+z
3. X=16/3-1/3y-1/3z