Answer:
x < 2
Step-by-step explanation:
Solve this the way you would solve an equation:

20C0 - 20C1 + 20C2 - 20C3 + . . . + 20C10 = 1 - 20 + 190 - 1,140 + 4,845 - 15,504 + 38,760 - 77,520 + 125,970 - 167,960 + 184,756 = 92,378
Answer:
the first one is independent
the second one is dependent
Step-by-step explanation:
9x – 3y – 5x + 7y + x + y
9x-5x+x -3y+7y+y
x(9-5+1) +y(-3+7+1)
5x+5y
Choice C