Alice earns 1.5 times her normal hourly rate for each hour she works after 40 hours .she worked 50 hours this week and earned 660 .what is her hourly rate ? write your answer in the box

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

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?

1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?