Answer:
Distributive Property
Step-by-step explanation:
12×x+5y×3z
12×12+5×6×3×3
144+30×9
174×9
1,566.
that's what I found out.
18$
The range is (-3,∞)
There is no specific range so it is infinite.
Hope I could help, if I was correct I hope you can consider marking me as brainliest! :D