Janellenetanawanid Janellenetanawanid Math Answered 1st row: 1 = 1 2nd row: 1+3=4 3rd row: 1+ 3 + 5 = 9 4th row: 1+ 3 + 5 + 7 = 16 5th row: 1+ 3 + 5 + 7 + 9 =? 6th row: 1+ 3 + 5 + 7 + 9 + 11 =? 7th row: 1+ 3 + 5 + 7 + 9 + 11 + 13 =? b). What is the sum for the 20th row? for the 50th row?