Suppose fifty students take at least one class from Mr. Green, who teaches band,
1 answer:
Answer:
13
Step-by-step explanation:
7 students take band and math only
2 students take band and choir only
4 students take choir and math only
We do not include the students that take 3 classes because it says exactly 2 classes
7+2+4 = 13
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3=1.059^t
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T=log(3)/log(1.058)
T==19.5 years
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