Answer:
1) 2
3) 49
4) 63
Step-by-step explanation:
basically, you just have to figure out the difference between the input and the output. So input 4, output 28, I would guess that the proportion is 7, because 4 x 7 = 28. So for #1, do 14/7 to get 2. and so on. See the answer above.
