To find the scale factor divide the bigger measurement by the smaller one.
You did number 17. 42 / 3 = 14 so your scale factor is 14, option D.
For number 18, 48 / 6 = 8 so option A.
Sheeesh theeeeee answerrrrrrrr isssssss a=3/4
30 divided by 3. Their are 3 sets of ten by 30 positives
3/8 meters squared because 3/4x1/2 = 3/8m
