HELP ASAP, WILL GIVE BRAINLIESS

Write 3√x^(2)y^(2) using fractional exponents.

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Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x

Bob is putting books on a shelf and takes a break after filling 18 1/2 inches on the book shelf. the book shelf is now 2/3 full. how long is the entire bookshelf?

Ian is in training for a national hot dog eating contest on the 4th of july. on his first day of training, he eats 4 hot dogs. each day, he plans to eat 110% of the number of hot dogs he ate the previous day. write an explicit formula that could be used to find the number of hot dogs ian will eat on any particular day.