Determine whether the following given retuse are proportion right yes if they are and no if not.
A.
___1. 18:9 and 4:2
___2. 3:7 and 4:9
___3. 2:6 and 4:10
B.
___1. 4/5 and 8/9
___2. 12/15 and 4/5
___3. 8/10 and 4/6
___4. 2/5 and 4/12
___5. 28/42 and 2/3​