6. 63(Could have counted wrong. Mode is the number that appears the most in a set of data)
7. Couldn't solve sorry!
(6) Mode is 63 (occurs two times)
(7)
EHS 52 = 13x4
WHS 65 = 13 x 5
EHS will have 4 rows of 13 each
WHS will march in 5 rows of 13 each