It's killing me! show work. stupid answers will be reported. part a: the sun produces 3.9 ⋅ 10^33 ergs of radiant energy per second. how many ergs of radiant energy does the sun produce in 2.45 ⋅ 10^5 seconds? (5 points) part b: which is the more reasonable measurement of the diameter of a blood cell: 7.4 ⋅ 10^−3 mm or 7.4 ⋅ 10^3 mm? justify your answer. (5 points)

Part A: To find how much the sun produces in 2.45 ·  , we need to multiply the rate per second by the number of seconds we want the answer to have. This gives us:
2.45 ·  · 3.9 ·  =
= 9.555 · 

That gives the answer of 9.555 ·  ergs 

Part B: The more reasonable measurement of the diameter of a blood cell is 7.4 · mm. That's because by saying the diameter of a blood cell is 7.4 · mm, you are saying the diameter is 7.4 meters! 

What are you asking ?

If there are four friends then each would get, 1.25 or 1 1/4. so this is how i solved 5 ÷ 4 = 1.25 . hope this ; )