Ralph is driving from his home to his grandmother’s house at an average rate of 40 miles per hour (mph). he had driven 6 miles when his sister maria left their house and began driving along the same route. at what average rate, in miles per hour, is maria driving if she catches up with ralph in 1 1/2 hours?

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.)