Does the following represent direct variation? if yes, find the constant variation

y/x =k

13/9 = 1.4444444

39/27=1.4444444

104/72=1.4444444

k =13/9  = 1 4/9

this is direct variation with a constant of 13/9 or 1  4/9

9 x 8 divided by (5-3)=36

to find the total number of combinations, multiply the quantity of each item by each other:

2 pairs of shoes x 3 pairs of shorts = 6 different combinations.