At an ice cream store, a family ordered 3 banana splits and 3 hot fudge sundaes, paying a total of $21 for their order. the next customer ordered 5 banana splits and 3 hot fudge sundaes and paid $27. how much does each item cost?

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.)