Can anyone me with this chunk of the problem?

For 17-20 multiply or add the amount it says above.

Step-by-step explanation:

13. 47.50 dollars / 5 = 9.50 dollars per shirt, $9.50.

14. 39.00 dollars / 6 binders = 6.5 dollars per binder, $6.50.

15. 4.50 dollars / 2 = 2.25 dollars per spiral notebook, $2.25.

16. 180 dollars / 15 = 12 dollars per hour of work, $12.00.

17. $2.25  per spiral notebook * 7 notebooks = $15.75.

18. $6.50 per binder * 2 binders = $13.00

19. $6.50 - $2.25 = $4.25.

20. $6.50 + $9.50 + $2.25 = $18.25.

70

step-by-step explanation:

2*5=10

4*15=60

60+10=

70

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.