Check the picture below, let's use those two points on the line to get its slope.

Answer:
6.569
Step-by-step explanation:
Difference is subtraction.
10.22-3.651=6.569
Answer:
$45.00
Step-by-step explanation:
it's the same thing, there is no context, so it pushes for me to believe that the answer is the same
Answer:
6
Step-by-step explanation:
First you solve 2y-3y=9.

Now that you have y, then you substitute y into x-2y=3 to find X

Your solution is (-15, -9)