Which of these is incorrect about the "rating of perceived exertion (RPE)"? Group of answer choices

A rating of 10 would feel like it’s almost impossible to keep going

The rating applies to the feeling of your whole body. It is a subjective measure of how you feel during exercise on a scale of 0 to 10. A RPE of 6 or greater is necessary to achieve the health benefits of physical activity.

Arestaurant gives out a scratch-off card to every customer. the probability that a customer will win a prize from a scratch-off card is 25%. design and conduct a simulation using random numbers to find the experimental probability that a customer will need more than 3 cards in order to win a prize. justify the model for your simulation, and conduct at least 10 trials.

Evaluate the expression for the given value of the variable 7a - 4a for a =8

The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z