What is the soultion 3-6x = 9-6x

If 20% of a number is 35, what is 50% of that number?

What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi

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