The digits after the decimal point represent tenths, hundredths, and thousandths respectively.<br><br>
In 13.789:<br>
&bull; (a) The digit 8 is in the hundredths place, so its value is 8 hundredths = 0.08.<br>
&bull; (b) The digit in the tenths place (first decimal place) is 7.<br>
&bull; (c) The digit 9 is in the thousandths place, so its value is 9 thousandths = 0.009.<br><br>
Final Answer: (a) 0.08, (b) 7, (c) 0.009