The slope of line T is -1/5, because perpendicular lines have opposite reciprocal slopes, meaning the opposite sign (positive or negative) and flipped (whole number becomes a fraction).
722 bricks and 8 workers.
If it is less than full it means it is anything below 5/5 or 6/6, so they both have less than full water bottles...
If you meant less than half full, Josan has 0.5/5 less than half, so yes, They should stop in this case as well.
X= 38 because vertical angles are equal