Answer:
A. A + B (it'll be negative because they're both negative numbers and adding a negative is the same as subtracting a positive)
B. B - A ( It'll be positive because subtracting a negative is the same as adding a positive, and B is closer to 0 so it's a "bigger" number than A. so, adding A to B will make it positive)
Step-by-step explanation:
The explanations are in parenthesis to the right of the answer. they're kind of confusing, but the answers are correct.
Step-by-step explanation:
Answer:
180
Step-by-step explanation:
The answer is 180 because:
Answer:
6 students must be enrolled.
Step-by-step explanation:
F(x) must be greater than 0. Thus, 70*n-400 must be greater than 0.
70*n -400 >0
70*n > 400
n > 400/7
n > 5.7
n >6
