Find each variable find x and y

x and y are equal b/c the triangle is isosceles triangle

when we see the angles of the triangle we get 2 equal angles

so to find the value of each variable we've subtract the parallel sides from the angles which means x=180°-45° y=180°-45°

x=75° y=75

b/c of it's isosceles triangle the two sides and angles are equal

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

we know that

1) the inscribed angle measures half of the arc it comprises.

so

m∠dgf= > expression

2) the opposite angles in an inscribed quadrilateral are supplementary angles

so

m∠dgf=

m∠dgf=°

substitute in the expression to find the value of arc ef

therefore

the answer is

the measure of the arc ef is