The product of 27.9 and which number has three decimal places?

The answer is B. or 2.741

A decimal place is how many numbers are to the right of the decimal itself.

tbh all of them could have 3 because no matter what you can add zeros to the right of the decimal because it doesn't do anything but for this problem 2.741 is the only one correct. ✔

hope this helps.

1/4 and 8/3 because:

the reciprocal if 4 is 1/4 because 4 is used as 4/1 and the opposite of that is 1/4. the opposite of 3/8 is 8/3 so that is the answer.