12.195+9.13=21.325 is the answer
Answer:

Step-by-step explanation:
To find the slope of the equation use
.
So,
=
. Now we can use our slope and any of the two points to write in point-slope form, which is
. Using the point (7,-6), the formula will give
.
To check, you can plug in this equation and the points into a calculator to graph. The line passes through both points.
Answer: 0.9
Step-by-step explanation:
There are 120 different possible groups.
(10 * 9 * 8)/(3 * 2 * 1) + 120