14.8...........
..................
Answer:
C: 4
Step-by-step explanation:
You call the number x. Then you do (x-7) * 3= -9.
3x-21=-9
3x=12
x=4
Answer:
Step-by-step explanation:
Let's start with distributing:
Simplify i with i in the second term, and rearrange.
. Since i in the denominator looks ugly, let's multiply top and bottom by i.
. The middle passage is based on the fact that, by definition, 
Answer:
Line AB is Perpendicular to line CD
Line AB Parallel to line EF
Answer:
20%
Step-by-step explanation: