I think it’s either C or A but more than likely C
Answer:
B. -6
Step-by-step explanation:
hope this helps!
Answer:
A) 
B) 
C) 
D)
Step-by-step explanation:
Hope this helps.
Answer:
6:30
Step-by-step explanation:
20+16+6= 42
72-42=30
there are 30 rocks that are slate