Draw arcs on either side of a given point on the line
To construct a line perpendicular to another line through a point on the line:
Measure a length from that point to one edge of the line
Draw two intersecting arcs on either sides of the line
Draw a straight line from the intersecting point of the arcs to the point on the existing line.
The new line drawn is a perpendicular line.
The only step necessary out of the given choices is "Draw arcs on either side of a given point on the line"
Option C is the correct choice
Learn more here: brainly.com/question/929137
Answer:
1. 
Step-by-step explanation:
These are simple multiplication questions of fractions. We multiply numerator with numerators and denominators with denominators. If numerator and denominator is both divisible by same number we can divide them for simplification.
1. 

2. 
Converting mixed form into fraction form,

Multiplying numerators with each other and denominators with each other

3. 
Multiplying these terms with each other:

Dividing numerator and denominator with 3

Answer:Yes it is proportional
Dance (D) + Rap (R) + Country (C) = 1,075 songs
D = 3R
C = R + 105
RAP
Subtract 105 from both side:
(3R) + R + (R + 105) = 1,075
-105 -105
Combine all R's:
(3R) + R + R = 970
5R = 970
Divide both sides by 5:
5R = 970
/5 /5
R = 194
DANCE
D = 3(R)
D = 3(194)
D = 582
COUNTRY
C = R + 105
C = 194 + 105
C = 299
So, the DJ has a total of 194 rap songs, 582 dance songs, and 299 country songs.