Natalie made a mistake in the following problem. The mistake was made in Line ___. Only input the number of the first incorrect line. Line 1 = 6(4) ÷ 2 - 1 + 5 Line 2 = 6(4) ÷ 1 + 5 Line 3 = 24 ÷ 1 + 5 Line 4 = 24 + 5 Line 5 = 29