A new car usually costs £8500. Henry gets a discount of £1000. What is the discount as a percentage of the the usual cost? Give your answer to 1 decimal place.

The average human heart beats 72 beats per minute. how many times does it beat in 15 seconds?

The price of a car has been reduced from $19,000 to $11,590. what is the percentage decrease of the price of the car?

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.)