Abakery offers a small circular cake with a diameter of 8 inches. it also offers a large circular cake with a diameter of 24 inches. does the top of the large cake have three times the area of that of the small cake? if not, how much greater is its area? explain.
25 points to whoever answers first

The triangles are similar. what is the value of x? x=

12x + 1 = 25 solve the following equation. then place the correct number in the box provided.

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