Which line passes through the origin? A. y= -1/2
B. y= -1/2x
C. y= x-1/2
D. y= -1/2x+2

Which expression is equivalent to (9x - 3 1/ + 1 3/8)

In what organelle does photosynthesis take place?

Carmen ayer en el mercado compro 3/4 kg de guayabas, 6/8 kg de peras, 1/2 kg de naranjas ¿cuantos kilogramos de fruta compro?