1.which ratios form a proportion with 18/30
a)20/35
b)50/90
c)6/48
d)60/100
2.which ratios form a proportion?
a) 4/9, 12/25
b) 3/7, 18/42
c) 5/11, 20/45
d) 5/8, 15/25
3. which proportion has cross products of 5*24 and 8*15?
a)5/8=15/24
b)5/24=8/15
c)8/215/55
d)15/8=5/4
if you are right il give brianliest!