This is for 21 !
marcus is a member of a theater club. he pays a monthly fee and his movie tickets are then $5 for an unlimited number of movies that month. look at the graph to answer the question. find the monthly fee. i can't put the graph on here, so i'm just going to list the points.
1, 12.50; 2, 17.50; 3, 22.50; 4, 27.50
a. 7.50
b. 8.50
c. 10.50
d. 35.00

pentagon

step-by-step explanation:

the coordinates   a(5, -2), b(3,-1),c(-4,-4) d(-3,8) and e(-1,4) forms the vertices of the polygon when they are connected in order.

in order to classify that which polygon is it with the given coordinates, first count the number of vertices and then count the number of sides it can make with these vertices.

since, the given coordinates have five vertices, therefore, it will make five sides. moreover, pentagon is regular in nature therefore it will be convex.

now, a polygon with five sides is known as pentagon, therefore, the given polygon is the pentagon.