The answer is 1.
EXPLANATION
The commutative property of multiplication states that two numbers can be multiplied in either order.
Answer:

Step-by-step explanation:
8x+9=0
8x=-9

or

,



, 
Answer C
Step-by-step explanation:
For number 7 what is the formula for volume of a cube
Answer:
In total she works 21 hours and for the equation its gn=g+n
Step-by-step explanation:
got the equation i just put gn but that can be replaced with 21 since g and n both represent the number of hours fawzia works