The negative in front has a variable of one since there can't just be a negative and so a negative times a negative is a positive so it's 15
Answer:
248000 miles
Step-by-step explanation:
if it takes 1 
seconds then multiply 186,000 by 1 because 186,000 is equal to 1
Answer:
there was a 16% increase since 2010 to 2012
Step-by-step explanation:
lets say the train had 100 people on it in 2010 and in 2011 it had an 8% increase which then brings you to 8 plus 100 and you get 108.
Now in 2012 there was an increase 8%, so you will add 8 to your previous answer 108 and receive 116. So now there was 16 more passengers in 2012 than in 2010. Transfer the 16 passengers into 16% and you now have your answer.
