In a race of 8 runners, how many ways can they place 1st, 2nd and 3rd?

Find the equation of the trend line (line of best fit). show your work i'm using the points (34,76) (42,91)

What are the coordinates of the midpoint of ab? ,1/2) /2,-1) ,-3/2) /2,-2)

Use complete sentences to differentiate between a regular tessellation, and a pure tessellation. be sure to include specific types of polygons in your explanation.