30 POINTS!!!
1. Which ratios form a proportion? Use equivalent rations to test each pair
a. 4/9, 2/3
b. 6/15, 9/12
c.12/16, 15/20
d. 18/20, 24/30
2.Which ratio forms a proportion with 20/30
a. 16/24
b.10/20
c. 17/51
d.15/60
3.Which ratios form a proportion?
a. 9/17,27/50
b.12/35, 24/75
c. 15/55, 33/121
d. 12/35, 20/70