Pls help will give brainlest

Given the following statements, which is the best

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

Use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the curves about the given axis.y = 7ex, y = 7e^-x, x = 1; about the y-axis