Answer(there are assumptions for this answer that you need to confirm and look at):
Assumptions:
and 
Answer if the operation is multiplication:
If you meant a closed dot which is the symbol for multiplication.


Answer if the operation is composition:
If you meant an open dot which is the symbol for composition.


Note: I don't know if you actually meant
or if
. Please let me know one way or the other.
Step-by-step explanation:
If we assume the functions are:


since multiplication is commutative.






We are asked to find
and
.
The order doesn't matter in multiplication.








Now you might have meant composition which symbolized with an open circle, not a closed one.


since 





since 



Answer:
22.86 centimeters (9 inches into cm is 22.86 cm)
Locate the y-intercept on the graph and plot the point.
From this point, use the slope to find a second point and plot it.
Draw the line that connects the two points.
First one simplifies to 2x + 6 = 2x + 7 which can't be true so this one has No Solution.
Same applies to the second equation ( 5x + 15 = 5x - 15) No solution
also the last one has no solution because it simplifies to 4x + 20 = 4x + 19
Add 70+93, then divide by the number of numbers, which is 2.
70+90=163
163/2=81.5
Hope this helps!