Answer :
Answer:1200 miles
Step-by-step explanation:
Given
Mr. and Mrs. Thompson drove [tex]300\ miles[/tex] in October
They drove 2 times as many miles in December
so they drove [tex]2\times 300=600\ miles[/tex] in December
In November they drove 2 times as many as in december
[tex]=2\times 600=1200\ miles[/tex]
So they drive 1200 miles in November