Are all diagonals also lines of symmetry ? explain

Combined megan and kelly worked 60 hours.kelly worked twice as many hours as megan.how many hours did they each worked?

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

In two or more complete sentences, determine the appropriate model for the given data and explain how you made your decision. (1,-1), (2,0.5), (5,1.5), (8,2)