escribe una expresion que sirva para calcular el area de la imagen proyectada a partir de la distancia a la que se encuentra el proyector​

Kinu wants to buy topsoil for a section of her garden that has the dimensions shown in the figure. each bag covers 2 square yards. how many bags of topsoil should kinu buy? explain how you found the answer.

Explain how you can use the associative property to evaluate (7x50)x4.

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2