Which of these is an example of a recurring-payment fixed annuity?

A. An annuity with an APR of 3.4% into which you invest $2500 each
year

B. An annuity with an APR of 3.4% into which you invest a lump sum
of $12,500

C. An annuity with a minimum APR of 3.4% into which you invest a
lump sum of $12,500

D. An annuity with a minimum APR of 3.4% into which you invest
$2500 each year

Which expression is the factored from of 2/3x + 4?asap

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

The actual length of side y is 22 cm. use the scale drawing to find the actual length of side x. a) 15.2 cm b) 17.1 cm c) 18.0 cm d) 28.3 cm