I would say C, but it also might be d
Answer:
(-1, 3)
Step-by-step explanation:
Rewrite the inequality as

by adding 4 to both sides.
So, you want to pick only the values that are strictly less than 12, i.e. all of the values except 13.
Answer:
6) 
7) 26x-1y +4z
Step-by-step explanation:
long division
____
__-4x__+1____
x-2 | 
-
<u />
-----------


----------------
x-2
x-2
Answer:
20 planes.
Step-by-step explanation:
12+p=32
- 12 - 12
p = 20