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? (1 point)
 40 ≤ x ≥ 100
 50 ≤ x ≥ 100
 50 ≤ x ≥ 400
 20 ≤ x ≥ 400