the one where they are diagonal from one another
Answer: should be x> -18
Step-by-step explanation: hope this helps
Answer:
The weight of box and pocking material
pound
Step-by-step explanation:
Let the weight of box and packing material 
weight of package
pounds
total weight
pound

Subtract both side by 

Hence weight of box and packing material
pound
Answer:
-21
Step-by-step explanation:
In the term -21xy, -21 is the coefficient. It comes before the variables that are x and y.