In the given graph, lets mark two points:
Let
and 
The slope of the line is given by:



The equation of the line is given by:






Therefore, the function equation represented by the graph is: 
B.
This is because perpendicular lines have opposite and flipped slopes.
Answer:
7x + 15x= 21x
Step-by-step explanation:
7x + 15x
= (7 + 15)x
= 22x
Answer:
29.1 cm
Step-by-step explanation:
Circumference of a circle is:
C = 2πr
Given that C = 183 cm:
183 = 2πr
r = 183 / (2π)
r ≈ 29.1 cm