[tex]\text {Hello! Let's solve this Problem!}[/tex]
[tex]\text {To round to the nearest thousandth you must underline the thousandth place}[/tex][tex]\text {(which is 8), point an arrow to 6 (in the ten-thousandth place)}[/tex]
[tex]\text {If the number is 5 or more you raise the score. Meaning you add 1 to the}[/tex][tex]\text {thousandth place. If the number is 4 or lower you keep the number the same.}[/tex]
[tex]\text {6 is greater than 5. So this means you add 1 to 8 and it becomes 9. Every}[/tex][tex]\text {number behind it becomes 0.}[/tex]
[tex]\text {Your Answer Would Be:}[/tex]
[tex]\huge\boxed {\text {6.7090 or 6.709}}[/tex]
[tex]\text {Best of Luck!}[/tex]