HELP!! Polygon ABCD, shown in the figure, Is dilated by a scale factor of 8 with the origin as the center of dilation, resulting in the image A'BCD. The slope of CD is?

Abaseball team drinks 10/4 gallons of water during a game. which mixed number represents the gallons of water consumed? a) 1 1/2 gallons b) 2 1/2 gallons c) 2 3/4 gallons d) 3 1/2 gallons