The sales for NIKE were approximately $6.5 billion in 2013 and $7.2 billion in 2014. Using only this information, write a linear equation that gives the sales in terms of the year. Then predict the sales in 2017.

A $27,000 car has a resale value of $19,000 five years after it was purchased. Assuming the value of this car depreciates linearly, estimate the value of the car 8 years after it was purchased. Enter number only; if your answer is $12,345, enter 12345.

In 2010, the total number of overnight visits to national parks was 12.82 million visits, and it decreased by about 0.21 million visits per year until 2014.    Find an equation of a model to describe the situation.      Explain what your variables represent.     Estimate in which year there were 12.0 million visits.

jim talk to a college admission advisor. the advisor tells him that the total cost of 3 credits is $700 and the cost of 9 credits is $1900. find a linear equation relating the number of credits taken and the total cost