Answer:
15*10^15
Step-by-step explanation:
5*10^6= 5*1,000,000
5*1,000,000=5,000,000
3*10^9=3*1,000,000,000=3,000,000,000
5,000,000*3,000,000,000=15,000,000,000,000,000
15*10^15=15,000,000,000,000,000
Hope this helps
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Details are important because they are like pieces of a puzzle, they all work together to create the bigger picture.
Ok I will help u