Final answer:
The number in standard decimal form is 0.0028.
Step-by-step explanation:
The number in standard decimal form is 0.0028. When we have a number written in word form, like 'eight and twenty-eight ten-thousandths,' we can convert it to standard decimal form by finding the decimal equivalent of the given place value fraction. In this case, the place value is ten-thousandths, which is written as 0.0001. Therefore, 'twenty-eight ten-thousandths' is equal to 28 x 0.0001 = 0.0028. Since there are no whole numbers mentioned in the question, the standard decimal form of 'eight and twenty-eight ten-thousandths' is simply 0.0028.
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