For however many hours your techs work in a workweek, they must make an amount at least equal to the number of hours worked times mimimum wage ($7.25). If they work 40 hours, for example, they must receive at least 40 x $7.25, or $290. As long as they do, it doesn't matter if they make $58/day, or $290 all in one day, or anything in between.