7.64 × 10⁵ = write in standard format

Find the domain of the following expression: 1/(√x)-2

Which of the following is the graph of y= square root -x-3

The point of intersection of the diagonals of a rectangle is 4 cm further away from the smaller side then from the larger side of the rectangle. the perimeter of the rectangle is equal to 56 cm. find the lengths of the sides of the rectangle. 16 points answer quick