Arnold puts money into an account. One year later, he sees that he has 7 percent more dollars and that his money will buy 3 percent more goods. What is the nominal interest rate and the inflation rate?

I'm not sure but it could be c ( not a 100% sure )

See diagram.we use washers to get the area and we will be integrating with respect to xouter radius is the  distance between y = e^x and y = -1    inner radius of washer is the distance between y = 1 and y = -1    the area of one cross-section of a washer is    solid lies between x = 0 and x = 2. the volume is    if you need this expanded, then    the question doesn't say to evaluate, so we're done.   

Answernormal with a mean of $5.25 and a standard error of $0.28