What is the probability of picking a prime number and then picking a 7?

The numbers 2, 3, 5, 7 are prime, so the probability that a prime is selected is 4/10 = 40%.

Therefor, the correct answer is 4/10 or 40%

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step-by-step explanation:

she would want to sell 10 full-year subscriptions and at least 9 half-year subscriptions to get a total of at least $300. 

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step-by-step explanation:

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