the answer is B.99 mi. we know that in 60min. she travels 66 miles but we don't fo 60 we have 90 to et the number first subtract the hour form the extra time to get 30. now 30 is the half 60 so divide 66/2 to see how much 66/2=33 then add the 66+33=99 so she travels 99 miles in 90 min.