helpppp plsss its tooo hard

Answer:
2nd row: 16
3rd row: 12.8, 64
Step-by-step explanation:
since x and y are proportionate, they share the same ratio.
4/0.8 = 5
so y = 5 * x
so for the 2nd row, 3.2 * 5 = 16
finally for the 3rd row test which numbers in the set * 5 will equal another number in the set.
in this case 12.8 * 5 = 64