Answer:
i dont know maybe you should search google. best of Luck
Step-by-step explanation:
=12-5=7
=21-12=9
when u look at they have a diffrence of 2 so the answer will have a diffrence of 2 =11
Answer:
ASA
Step-by-step explanation:
SAS, it must go in order and SAS covers it up, Side, Angle, Side
is the same as 
Dividing by 3 is the same as multiplying by the fraction 1/3