O is the center of the circle. Assume that lines that appear to be tangent are tangent. What is the value of x?

56

Step-by-step explanation:

We know that radius of a circle is perpendicular to the tangent of the circle at the point of contact.

from the figure we get,

the x axis shows   the months and,

the y-axis shows the number of satisfied customer.

each line or each cell in upward direction (y-axis) shows 500.

the appropriate scale for the y - axis is: -

a = 2000 customers

b = 4000 customers

c = 6000 customers

d = 8000 customers

e = 10000 customers

f = 12000 customers

g = 14000 customers