Answer:
I don't know if you still need an answer but- here ya go :)
a. -22 + 5 = -17
b. -22 - (-5) = -22 + 5 = -17
c. (-22)(-5) = 110
d. (-22) / 5 = -4.4
The answer to this question is Letter B.
Answer: 120
Step-by-step explanation:
Given : The league championship 800 meter race has 6 runners.
The number of positions = 3
Since order matters here , so we use Permutation.
The permutation of n things taking r at a time is given by :-

Then, the number of different ways they place first, second, and third :_

Hence, they can place first, second, and third in 120 different ways .
At the end of the directions, it talks about parallel, perpendicular, or neither. When x=y, the lines are perpendicular and have infinite solutions. When they are parallel, there is no solution. You'll get an answer like 4=5. Neither means there is only one answer, and you will get one x and one y.