How do i do this page? its too much anf its due soonm

15 points ! ~ see if you know the answer to both you!

What is the radical expression that is equivalent to the expression 27 1 over 5?

Asix-sided die of unknown bias is rolled 20 times, and the number 3 comes up 6 times. in the next three rounds (the die is rolled 20 times in each round), the number 3 comes up 6 times, 5 times, and 7 times. the experimental probability of rolling a 3 is 10 %, which is approximately % more than its theoretical probability. (round off your answers to the nearest integer.)