Lincoln accepted a new job at a company with a contract guaranteeing annual raises. Let S represent Lincoln's salary after working for n years at the company. A graph of
S is shown below. Write an equation for S then state the slope of the graph and
determine its interpretation in the context of the problem.

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?