Mathematics, 10.10.2019 12:30 carcon2019

Hugh has to earn at least $400 to meet his fundraising goal. he has only 100 books that he plans to sell at $8 each. which inequality shows the number of books, x, hugh can sell to meet his goal?

20 ≤ x ≤ 400
40 ≤ x ≤ 100
50 ≤ x ≤ 400
50 ≤ x ≤ 100

i believe the answer is d but i just want to double check

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