Có bao nhiêu hoán vị {1.2….9} mà 4,5,6 không đứng cạnh nhau theo thứ tự tăng dần

Figure abcd is a parallelogram. if point c lies on the line x = 2, what is the y-value of point c?

Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?

The measures of the legs of a right triangle are 15m and 20m . what is the length of the hypotenuse