Answer:
9.5
Explanation:
if you divide them
28.5÷3=9.5
38÷4=9.5
47.5÷5=9.5
57÷6=9.5
the constant proportionality is 9.5. They are equal.
For every one inch of water the snow increases by 9.5
38 - 28.5 = 9.5
57 - 47.5 = 9.5
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