Answer:
4 minutes
Step-by-step explanation:
1/2 minute times 8 eights of a song = 4 minutes
Answer:
D. 
Step-by-step explanation:
The point-slope form of a line is given by:

The line given to us has equation;
.
The slope of this line is -4. The of the line perpendicular to this line is the negative reciprocal of the slope of the given line.
Our slope of interest is therefore; 
Since the point goes through (-2,7), we have
.
We plug in the slope and the point into the point-slope formula to obain;

The required equation is:

Step-by-step explanation:
×/21 x ×/21 = 7× x/21
x= 1/3
Once you combine like terms you are left with 18k +3.