Length of Triangles.

Can someone answer this question? : )

Δabc is dilated by a scale factor of 3 with the origin as the center of dilation to form δa′b′c′. the slope of is -1.2. the length of is p units, the length of is q units, and the length of is r units. the slope of is . the length of is units.

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?