Answer:
1. 3
3. 5
Step-by-step explanation:
step below
1. 4/12 = 6/18 ..... 1/3
2. not a proportional dilation
3. 5/25 ..... 1/5
4. 2/5 (40*2/5= 16 , 35* 2/5=14)
5. 2/3 (24*2/3=16, 15*2/3=10)
