Answer:
a - (-b), a - (-5)
Step-by-step explanation:
A double negative negative is a positive, so a - (-b) = a + b, and a - (-5) is a + 5. However, a double negative is still a difference, so this answer works.
Answer:
30
Step-by-step explanation:
40/100 x 50= 20
50-20=30
Answer:
I believe the answer is 6yx.
Step-by-step explanation:
I'm sorry if this is wrong.
First, you would need to create an equation for this problem.

=

Next, you would cross multiply.
5x = 8,000
Now, all you would have to do is isolate the x. To do this, you would divide both sides by 5.
x = <span>
1,6001,600 people are considered middle class. I hope this helps!</span>
Answer:
N = 18
Step-by-step explanation: