Pls help King has started jumping rope as part of his exercise routine. He keeps track of his jumps and time spent jumping to map his progress. Most recently, he jumped 497 times in 7 minutes.

Which of the following describes King's pace?

King jumps 49 times per minute.

King jumps 53 times per minute.

King jumps 67 times per minute.

King jumps 71 times per minute.

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry

Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) after two days the scientist receives a second shipment of 50 grams of the same element. the equation used to represent the amount of shipment 2 remaining after t days is 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?