In 1987, a 30-second superbowl ad cost $40,000. in 2000, a 30-second commercial cost 1,800,000. what was the percent of change in the cost of a commercial?

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.)