A toy truck wheel is shown below. 16 cm
Which is closest to the distance traveled during the 2 full rotations of the toy truck wheel?

I'm confused on this could anyone me and show me what i need to do to solve it.

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.)

Me because i don't understand how to do it.: )