79. In a regular pentagon, all of the angles are equal in measure. The sum of the angle measures is 540°. Which of the
following equations could be used to find the measure of
each angle?
= 5
540
C 540 x = 5
© 5x = 540
O = 540

99 points at a zoo, the leopard pen has a ring-shaped sidewalk around it. the outer edge of the sidewalk is a circle with a radius of 12 m. the inner edge of the sidewalk is a circle with a radius of 8 m. (1 point for showing all of your work) a. write and simplify an expression for the exact area of the sidewalk. (1 point for the answer) b. find the approximate area of the sidewalk. use 3.14 to approximate π. (1 point for the answer)

What is the point-slope form of theequation for the line with a slope of-2 that passes through (1, 4)? a y + 1 = -2(x + 4)b y-1=-2(x-4)c y + 4 = -2(x + 1)d y - 4 = -2(x - 1)

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0