Answer:
So, 
Step-by-step explanation:

To evaluete this expression we apply exponential property

IF any expression has exponent 0 then the value is 1 always
for example, 

because exponent is 0
So, 
Answer:false
Step-by-step explanation:
True, you would use the ratio of minutes to seconds.
I think the answer is B but I am not sure
Answer: 15, 17, 19
Step-by-step explanation: