Charley bateman obtained a loan of $2,400 to install a solar panel on his roof. the interest rate is 12% and the monthly payment is $113.04. how much of the first monthly payment covered principal? (hint: subtract the interest from the monthly payment. to find the interest, you can use the formula i = prt and mental math.)

Match each expression with its simplified form.

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

Divide. write in simplest form 41/6 divided by 10