Answer:
398.411
Step-by-step explanation:
Explanation has been given in the following attachments.
Answer:
0.1x+0.04y=4,000
x+y=352
Step-by-step explanation:
Answer:
6500
Step-by-step explanation:
Answer:
24
x + 30
y + 12
Step-by-step explanation:
this is simplified
I'm not sure what the stuff in blue indicates. If we ignore that, then the flat horizontal line means the person stays motionless at some distance away from the motion detector. They don't move because the slope = rise/run is zero here, to indicate a zero speed.