Which of the following sets of numbers could not represent the three sides of a right triangle A. 39, 80, 89
B. 51, 68, 85
C. 48, 64, 80
D. 13, 48, 50

Julie goes to the sports store and spends $40.50 before tax. she buys a pair of shorts for $21.75 and 3 pairs of socks that each cost the same amount. how much does each pair of socks cost? $$