The equation is simply 8s where s is the length of a side. There are 8 sides. You are just adding the length of all 8 sides together to get the perimeter.
Answer:
The right answer is Option 2:

Step-by-step explanation:
Point-slope form of equation of a line is given by:

Here m is slope of the line and (x1,y1) is the point from which the line passes.
Given
Slope = m = -3/4
Point = (x1,y1) = (2,-6)
We simply have to put these value into the general form of equation of line in point-slope form

Hence,
The right answer is Option 2:

Slope intercept form is

, where 'm' is the slope and 'b' is the y-intercept.

Subtract 6x to both sides:

Divide 5 to both sides:
7th person that walked in would be 66 years old
Area of triangle = (1/2)*b*h = (1/2)*7*10
= 7*5 = 35 squared cm