B) Viết số thích hợp vào chỗ chấm: Tìm x, biết : 5/7 > x/10 > 4/7 . X cần tìm là:

Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

Using the side-splitter theorem, daniel wrote a proportion for the segment formed by luke segment de. what is ec?