If ΔABC is dilated from point A by a scale factor of 1/2 which of the following equations is true about D'E’? A.) D' E' = 1/2DE
B.) D' E' = 2DE
C.) D' E'= DE
D.) D' E'= 3DE

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post

The difference is 5,100m?