Help pleasde

12

Step-by-step explanation:

you minus the smaller section from the whole thing so 15-3=12

12

Step-by-step explanation:

Whatever your teacher did is very wrong because we can very clearly see that BC is larger than AB. But the graph shows that AB is larger than BC. But either way. we can just subtract 3 from 15 and get 12. Which means that all that's remaining from the point AC is BC which is 12.

-22

times both sides by 2, times () by 8, add alile terms, move terms, add alike and caculate divide both sides by 3

table 3 represents a direct variation function. : )