Part A: The sun produces 3.9 ⋅ 103^3 ergs of radiant energy per second. How many ergs of radiant energy does the sun produce in 2.45 ⋅ 10^5 seconds? 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.

Oh i'm sorry. didn't see the options

This law is sometimes called the grouping property. as you can see, regardless of how the numbers are grouped, the answer is still 13. the associative law of multiplication is similar to the same law for addition. it says that no matter how you group numbers you are multiplying together, you will get the same answer.