first we need to know how much he drives in a day we can find that by dividing 765 and 2. That equals 382.5 then from that we multiply it by 3.5 because that's the number of days we gotta find. When we multiply 3.5 and 382.5 it equals. 1,338.75 or in fraction form 1,338 3/4 hope this helps :3