10 + (-5) = 10 - 5 = 5
-11 + 20 = 20 + (-11) = 20 - 11 = 9
102 + (-1) = 102 - 1 = 101
<span>-20 + 60 = 60 + (-20) = 60 - 20 = 40</span>
The following sequence shown up top is arithmetic sequence
Answer:
1217 I think
Step-by-step explanation:
Answer:
<u>Divide by -8</u> on both sides. <u>Flip</u> the inequality.
Step-by-step explanation:
You didn't provide any answer choices, but here's how you would solve this:

Notice that because we divided by a negative, the inequality sign must flip in the other direction!
Answer:
9a+12
Step-by-step explanation:
The perimeter is the sum of the side lengths, so is ...
6a + a + 4 + 8 + 2a
= a(6 +1 +2) + (4 +8)
= 9a +12