150.6
all i did was i multiplied 5.02 by 30
any of them that add up to 180 degrees.
the distance between the school and her home is 3.6km.
12 mins = 0.2 hours = 1/5 hour
54 ÷ 3 = 18km per hour
1/5 of 18 = 3.6km per 12 mins