He can make around 18 the common denominator is 20 for 9/10 and 1/20.
Answer:
A
Step-by-step explanation:
If you have to add 2 to X to get it back to the original, it started out 2 to the left. (It would seem like it ought to be C, but when you add an subtract from the x value in functions, it's opposite of what you might think.)
Answer: 
Step-by-step explanation:
To find the slope, you want to use the formula
.

Now we know the slope is
.
Answer:
-0.125
Step-by-step explanation:
Shown in the image above