Cho 4 điểm A, B,C, D trong đó không có 3 điểm nào thẳng hàng, bất kì 2 điểm nào cũng có khoảng cách lớn hơn 10. Chứng minh rằng tồn tại hai điểm trong 4 điểm đã cho có khoảng cách lớn hơn 14.

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

Erinn wrote the equation –5x + 4y = 32 to represent her hourly wage (y) and how this wage has changed during each year that she worked at a company (x). what is the rate of change in erinn's hourly wage per year?

Answer asap and if you do you will get brainliest. catherine buys a gallon of ice cream from the store. after taking it home, she eats a fifth of a gallon of ice cream. her sister eats some of the ice cream as well. if two-thirds of the original amount of ice cream is left, then what fraction of a gallon of ice cream did her sister eat?