At the end of 2014, the annual average inflation rate was 1.6%. The average inflation rate changed by −1.5% in 2015. Which number line shows the expression for the change in the inflation rate?
1.6+(−1.5)
A:Number line. Arrow showing distance of 1.5 units to left, ending at 0.1. Indicates starting at 1.6 and moving 1.5 units to left.
B:Number line. Arrow showing distance of 1.5 units to right, ending at 3. Indicates starting at 1.5 and moving 1.5 units to right.
C:Number line. Arrow showing distance of 1.5 units to right, ending at 3.1. Indicates starting at 1.6 and moving 1.5 units to right.
D:Number line. Arrow showing distance of 1.6 units to left, ending at negative 0.1. Indicates starting at 1.5 and moving 1.6 units to left.
What was the new average inflation rate at the end of 2015? Answer:
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