a) .34, 3/5, .7
because i know that 3/5 =.6 and 7 is bigger than 6 and 6 and 7 is bigger than 3
b)77/100 ,4/5, .817
i know because 77/100=.77 and this is the smallest and 4/5=.8 and this is the second smallest
c).425, 1/2, 3/5i know because 1/2=.5 and 3=5=.6