If a number is first doubled then decreased by six and the result is eight, what is the number?

How many grams must be adde to 970g to make 1 and a half kg

If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (cxd)(x)

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