Answer:
it should be 6 not 100% sure though
Step-by-step explanation:
I am sorry i dont understand
r-12
substitute in r=7
so 7-12 = -5
Answer:
commutative
Step-by-step explanation:
you are typing the same numbers but in different order
Answer:
its called common sense
Step-by-step explanation:divide negative by the positive leaving you with the commomn answer thus its subtraction
