Answer:
The slope of the dashed line is 
Step-by-step explanation:
Perpendicular lines and slopes:
If two lines are perpendicular, the multiplication of their slopes is -1.
What is the slope of the dashed line
Perpendicular to a line with slope 4, so:


The slope of the dashed line is 
Answer:
26 bc it is equall
Step-by-step explanation:
The answer would be £480 because 20% of 600 is 120 and 600 take away 120 is 480