Which of the following is a positive impact attributed to immigrants arriving in u. s. "gateway" cities?
a) buying and renovating properties
b) spending money in local businesses
c) establishing new businesses
d) all of the above

D. All of the above because new businesses means more jobs spending money helps businesses and buying properties helps businesses.

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.