B is correct
12/3=4
-> 3 x 4 = 12
Literally just plug it in
6(7) + 5(-4) - 42 = 0
42 -20 -42 = 0
-20 = 0
Not a solution.
60 miles per hour
so 156 miles = 156 /60 = 2.6 hours
0.6 x 60 = 36
so 2.6 hours = 2 hours 36 minutes
Kim leaves Rotherham at 7: 30AM
7:30 AM + 2 hours 36 minutes = 10:06 AM
Answer
Kim arrives in London after 10AM
3(1,000,000)=3,000,000
3(100,000)=300,000
2(100)=200
3,300,200