Ineed the results of 27? 3? 5? 2=19

Atriangle has vertices of (0,3.5), (3,1.5), (0, -1.5). if it is dilated with center at the origin, and a scale factor of 2, what will be the coordinates of the image?

To get to school each morning, vanessa takes a horse 19.3319.33 kilometers and a train 2.272.27 kilometers. in total, the journey takes 26.4826.48 minutes. how many kilometers is vanessa's journey in total?

What is the answer for the problems 6x+y=36 and 5x−y=8?