Question 3 options:
in an equilateral triangle, all 3 sides are equal length, and the perimeter of an equilateral triangle is 3 times the length of one side.

if one side measures 9 + 3x, and the measure of another side is 5x – 5, what is the perimeter of the equilateral triangle?

90

Step-by-step explanation:

Given: Measure of one side of equilateral triangle =

Measure of another side of equilateral triangle =

In equilateral triangle all three sides are equal in length.Therefore,

On substituting the value of x in side of equilateral triangle,

One side of equilateral triangle =

Perimeter of equilateral triangle = 3 ( length of one side) ........( given)

perimeter of equilateral triangle =

step-by-step explanation:

x^2 -12x + 36 + y^2 = 36

x^2 + y^2 = 12x

r^2 = 12rcos(theta)

r = 12 cos(theta)

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads