(congruent polygons)does anyone know how to do this? my math teacher gave out a huge packet but he didn't even teach any of this, and it's due : /

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