Answer:
[tex]\huge \boxed{\mathrm{800 \ mm}}[/tex]
Step-by-step explanation:
765 mm to nearest 100 mm would be to round up 765 to nearest hundred.
765 rounded up to nearest hundred’s place would be 800.
The place after 7 is 6, which is higher or equal to 5, so we add 1 to the hundred’s place followed by zeros.
