What are the coordinates of the centroid of a triangle with vertices D(0, 1) , E(2, 6) , and F(7, 2) ?

Which addition property is being illustrated below? (type commutative or associative) (6 + 7) + 1 = 6 + (7 + 1)

Acircular city park has a sidewalk directly through the middle that is 111 - feet long. if each bag of fertilizer covers 50 square feet, then determine how many bags of fertilizers the parks and recreation department needs to use to cover the circular park. ignore all the sidewalks around and through the park.

What is the slope of the line that contains the points (-2,1) and (0,-3)