Hello need assistance with these four questions

Thanks and please explain

Use the Python interpreter to answer the following questions. Where appropriate, probide both the answer and the Python erpression you used to get it. 2.3.1. Every cell in the human body contains about 6 billion base pairs of DNA (3 billion in each set of 23 chromosomes). The dist angstroms (3.4 x 10-10 meters). Uncoiled and stretched, how long is the DNA in a single human cell? There are about 50 trillion cells in the human body. If you stretched out all of the DNA in the human body end to end, how long would it be? How many round trips to the sun is this? The distance to the sun is about 149,598,000 kilometers. Write Python statements to compute the answer to each ance b etweern each base pair is ab out 3.4 of these three questions. Assign variables to hold each of the values so that you can reuse them to answer subsequent questions. Set a variable named radius to have the value 10. Using the formula for the area of a circle (A-r2), assign to a new variable named area the area of a circle with radius equal to your variable radius. (The number 10 should not appear in the formula.) 2.3.2. 2.3.3. Now change the value of radius to 15. What is the value of area now? Why? 2.3.4. Suppose we wanted to swap the values of two variables named x and y. Why doesn't the following work? Show a method that does work. xy