Sally ran 2 1/4 miles in 1/2 hour. what is her speed in miles per hour?

Step-by-step explanation:

2 1/4 = 2.25 miles

1/2 hour = 30 minutes

30 minutes x 2 = 1 hour

2.25 x 2 = 4.5 miles

Sally runs 4.5 miles per hour.

Hope this helps!

think about it deeply and passionately about this property

i am sorry

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.