Answer:
A) 5.92 billion dollars
B) 1.184 billion dollars per year
Step-by-step explanation:
Part A)
The change in annual sales between 2010 and 2015 is calculated as the difference between the sales of 2015 and 2010. So, taking into account the table, we get:
59.42 - 53.5 = 5.92 billions of dollars
Because 59.42 billion are sales in 2015 and 53.5 billion are sales in 2010.
Therefore, the answer is 5.92 billion dollars
Part B)
The average rate of changes in sales from 2010 to 2015 is equal to the change in the annual sales divided by the number of years, so it is calculated as
Therefore, the average rate of change is 1.184 billion dollars per year.