Write two equivalent fractions for each 3-12(the fractions are the numbers)9-13,1-3,4-5,1-4,8-11,4-7,5 -8,3-6,2-10,6-9,1-2,4-10,3-8,12-13, 10-11,8-12,4-6,5-7,5-11,6-13
1-6,1-5,3-7,7-8,5-9,3-4,2-9,2-7,8-1 0

18a

step-by-step explanation:

simply because it is. it's the highest common factor

in the attachment.   i didn't see your choices.   the word which means there is choices.

step-by-step explanation:

(x,y)

x tells you how much left or right you go from the origin

y tells you how much down or up you go from the origin

so for example (-3,2), you go left 3 and up twice. i denoted which of the ordered pairs is which in my graph.