Answer:
17
Step-by-step explanation:
Option C is your answer.
Add (- 3) + 2 to get - 1 for the exponents. 2^ (-1) is the same as 1 / 2^1 which is 1/2.
The range of his scores is basically :
Subtract the highest score and the lowest score, and you find the range :
98 - 75 = 23
The range is 23..
:)
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