The cost of producing n pairs of shoes is p-15n+360. The shoes cost $75 a pair, which can be represented by o=75n. For how many pairs of shoes does the cost of production equal the sales?​

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.)