Answer
1, 6, 15,20, 15,6,1
Work Step by Step
The numbers in the seventh row using the pattern that was noticed in the pascals triangle. The trend is that the last two digits are 1, and the numbers in the row are the consequence of the sum of the numbers located directly above them in the previous row like if 1 3 3 1, then the next row has 1 at both ends so 1, _, _ , _, 1 so sure of 1+3=4 and 3+3=6 so 1, 4, 6,4,1 is the next row.
