SOLUTION: The principal P it's about at a simple interest rate R for period of time. T find the simple interest old for the use of the money. Assume there are 360 days in a year and round an

I'm almost certain that you know the simple interest formula. If not, you can find it in numerous places, especially the internet. When you find it, simply substitute:

6,000 for P, the principal or original amount invested

.03, or  for r, the interest rate (Note that R is completely different from the R that you wrote)

 for t, the time in years

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