L- Un cubo de dimensiones \( 3 \times 3 \times 3 \) se construye usando cubitos de tamaño \( 1 \times 1 \times 1 \). Luego se van quitando cubitos de delante hacia atrás, de izquierda a derecha y de arriba hacia abajo, como se muestra en la imagen. ¿Cuántos cubitos \( 1 \times 1 \times 1 \) quedan?

How do you rotate 270 degrees counterclockwise about the origin? What is the rule for rotating 270 degrees about the origin? 

A rectangular field 225 ft by 120 ft has a ring of uniform with cut around the outside edge. The ring leaves \( 65 \% \) of the field uncut in the center. What is the width of the ring?

Dar la ecuacuion parametrica y vectorial de la recta \( 2 x+y=5 \). Grafica

23) The farmer in the previous problem has a neighber who has a field 325 ft by 420 ft . His neighbor wants to increase the size of his field by \( 20 \% \) by cultivating a band of uniform width around the outside of his lot. How wide a band should his neighbor cultivate?

Donna has a garden that is 30 ft by 36 ft . She wants to increase the size of the garden by \( 40 \% \). How wide a ring around the outside should she cultivate