A. Chéo hóa ma trận A .
b. Từ kết quả câu a, hãy tính 10 A .

Parallelogram rstu is a rhombus. m∠r = 120° what is m∠t = 120 (what is m∠rsu? )

The price of a box of 15 cloud markers is $12.70. the price of a box of 42 cloud markers is $31.60. all prices are without tax, and the price of the packaging is the same for any size. how much would 50 cloud markers in a box cost? write an equation which will tell the price p for the number n markers in the box.

After john worked at a job for 10 years, his salary doubled. if he started at $x, his salary after 10 years is o $2 $x42 $x-2 $24