Pls help i have a d in algebra If x - 3 = 1, then what is the value of x^2 - 3x - 1

A. 1/12
B. 1/9
C. 3
D. 9

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.)