Describe the image of D first reflected across line l, then across like m.

dont't really have enough info here but its likely

sss for the three sides being congruent ( its stands for side side side)

or

sas   for side angle side.   so a side is congruent and and angle and a side

answer: given the scale 3,5 mm to 1 foot: so you know this and you need convert this 150mm to get the right answer.