Answer:
Step-by-step explanation:
A is 10
B is 13
C is 
D is 
Answer:
(A,C)
Step-by-step explanation:
i think
Answer:
c = 30
Step-by-step explanation:
since:

once we find a c value for 10, we know that it will work for - 10 as well

we can sub in 10 to get
