Heather is a software saleswoman. Her base salary is , and she makes an additional for every copy of Math is Fun she sells. Let represent her total pay (in dollars), and let represent the number of copies of Math is Fun she sells. Write an equation relating to . Then use this equation to find her total pay if she sells copies of Math is Fun.

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.)