The number of pages Caitlin reads over time is shown in the table below. Caitlin's Reading Log
Hours
2 4 5
Number of Pagos 90 180 225
Part A. What is Caitlin's rate of reading?
Part B. Victoria reads at the rate of 60 pages per hour. What is the difference in the number of pages Victoria and Caitlin will read in 6 hours?
Enter the correct numbers in the boxes.
A.
pages per hour
B.
pages

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