Answer:
Step-by-step explanation:

Answer:
n E R
Step-by-step explanation:
Since 7n-8 is a linear equation with no restrictions, n's domain is real numbers.
Answer:
Y has to belong to the interval [-9,-2]
Step-by-step explanation:
-9≤y≤-2
Answer:
0.4
〜
Darling, all you need to do is, factor the numerator and denominator and cancel the common factors, and you'll get the answer 0.4.