1:59 pm is 13:59, 13:59 - 06:31 = 07:28
Answer: 7 hours 28 minutes to reply
2.,3. On a "date" at 6:31 am when he already has a girlfriend? Dump him and don't look back.
Okay to split a segment in half you just need to find the midpoint of the two endpoints. Mathematically this is just the average of the coordinates of the endpoints which is:
mp=((x1+x2)/2, (y1+y2)/2)
Which in this case is:
mp=((-2+3)/2, (4+7)/2)
mp=(1/2, 11/2)
mp=(0.5, 5.5)
So the x-coordinate by itself is just 0.5, or answer c.
I worked out the problem hope it helps
Sal: −38 feet
Sam: −45 feet