Pipe B is faster. I can't answer the second part. Pipe A pumps 15.16 liters btw
Answer:
15.7
Step-by-step explanation:
'6' is in the tenths place in 15.6895. The digit following this '6' is '8,' which requires rounding up this '6' to '7.'
Thus, to the nearest tenth, we get 15.7.
well, in short, the students and chaperones are at a 2 : 9 ratio, and we know there are 171 students, how many chaperones then, so long they maintain a 2:9 ratio?

Answer:
B) 625
Step-by-step explanation:
(-5)^4
-5*-5*-5*-5
25*25
625