A person invested \$7,200$7,200 in an account growing at a rate allowing the money to double every 13 years. How long, to the nearest tenth of a year would it take for the value of the account to reach \$25,200$25,200?

Use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the given curves about y = 8.8y = x3, y = 0, x = 4use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the given curves about y = 8.8y = x3, y = 0, x = 4