PLEASE HURRY The data on the box plot describes the weight of several students in sixth grade. Which of the following statements are true about the data set? Select all that apply.

The median weight of the sixth graders is 85 pounds.
The total range of weight is 40 pounds.
One-fourth of the students weigh more than 75 pounds.
One-fourth of the students weigh between 90 and 101 pounds.
One-fourth of the students weigh less than 75 pounds.
One-half of the students weigh between 75 and 90 pounds.

The rate of decay of a radioactive substance depends upon the amount present initially. the mass y (mg) of the radioactive substance cobalt-60 present in a sample at time t (years) is represented by the exponential equation y=50e −0.1315 t . answer the following questions in complete sentences. 1. how does the exponential equation above compare to the equation for simple interest that is compounded continuously? explain the similarities. 2. what is the initial amount of cobalt-60 in the sample? 2. how much cobalt-60 is left after 8.4 years? show your work. 3. what would be the y-intercept of the graph? what does it represent? 4. after how many years will the amount of cobalt-60 left be 6.25 mg? explain what happens to the cobalt-60 after 50 years? 5. discuss some “real-world” examples and uses of cobalt-60