D because they all increase by the same number (+1)
The first is proportional the second is proportional and the third is not proportional
C is the answer for this question (2/10)
2.3= 2.03 so there for it is equal
Think of debt to GDP as a fraction. Debt / GDP
<span>So the two ways the ratio can decrease is if the nominator decreases (for example 2/3 goes to 1/3), or the denominator increases (1/3 goes to 1/4).
Dose this help?</span>
