Yuka earns frequent flyer miles from two airlines. Last year, she flew 20,000 miles with Airline A and 10,000 miles with airline B, and the combined value of her miles was $700. This year, she flew 10,000 miles with Airline A and 20,000 with Airline B, and the combined value of her miles was $800. How much is airline A's miles worth

i believe the correct answer is option 4.principalities were small territories that were run by russian rulers.

which statement correctly defines principalities in northern asia in the 1200s? principalities were small territories that were run by russian rulers.

hope i could ! : )

answer: 1 box of pens at the store ? ? pens in the box