$90/10 = 9
$160/20 = 8
$80/10 = 10
$120/20 = 6
The package that has the lowest ratio cost to number of lessons is $120 for 20 lessons.
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When a population or group of something is declining, and the amount that decreases is proportional to the size of the population.
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Answer:
is that the question??
Step-by-step explanation:
Answer:
I dont know sorry
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