If you wish to calculate the interest on an investment with a rate of 3.58%, what number will you plug into your equation? a.3.58b.0.358c.0.0358d.0.00358  ;

To get a certain percentage as a decimal, all you have to do is divide this percentage by 100.

Applying this on the given question, we will find that:
3.58% = (3.58) / (100) = 0.0358

Comparing the calculated value to the given choices, we will find that the correct choice is:
c) 0.0358