Michelle weighs 90 pounds, which is 120% of what she weighed two years ago. How much did she weigh two years ago?

A) 108 pounds
B) 75 pounds
C) 175 pounds
D) 88 pounds

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.)