Entre las siguientes expresiones algebraicas, indica cuáles son monomios o polinomios, y escribe en esos casos el grado, los coeficientes y las variables utilizadas.

Simplify the expression. -2/5(10+15m-20n)

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. solve this quadratic equation using the quadratic formula. 2x2 - 2x=1 need asap

If angle ase measures 168 degrees, find the measure of angle dse. the figure mag not be drawn to scale