Answer:
110m
Step-by-step explanation:
if they have already repaired 3/4 of the road than the rest that is left is equal to 1/4 of the ehole road, which is 440m, so the legth of the rest of the road is 1/4*440m=110m
1-3/4=1/4
1/4×440=110m
6x
7x - x
perpendicular
3y = x + 4 in slope intercept form y = 1/3x +4/3
3x + y = 1 in slope intercept form y = -3x +1
the slopes are negative reciprocals of each other so they are perpendicular