-9-(-12)=-9+12=3
-9-12=-9+(-12)=-21
Find the midpoint of (1,-4) and (7,1) to find the rest stop. To do this add the x values and divide by 2, then add the y values and divide by 2. (4,-1.5) is the midpoint.
To find the distance, use the distance formula then multiply the result by 5.38. The distance is 42 miles
Rounded to the nearest tenth, the square root of 149 is 12.2.
Divide 2,800 by 25 which equals 112, there are 112 rows in total
