Answer:
1/2 - 3 1\4= -11/4
1\2 - 4\5= -3\4
1\6 + -3 3\4= 43\12
EQUILATERAL TRIANGLE = 3/27
I HOPE IT IS HELPFUL
Formula: Distance = rate * time
570 = (R+(R-18))*3
570 = (2R - 18)*3
190 = 2R-16
208 = 2R
R = 104
Eastbound Train: 86mph
Westbound Train: 104mph
