Answer:
x = 
Step-by-step explanation:
Given
kx - c = 9 ( add c to both sides )
kx = 9 + c ( isolate x by dividing both sides by k )
x = 
The next step in the series is choice D.
Answer:

Step-by-step explanation:
The magnitude of a vector
is
, which essentially describes the length of the vector itself between the initial and terminal points:

Answer:
The capital B refers to the base of the area
Step-by-step explanation: