Escoge la traducción mejor. i don't care. (importar) a. no me importa. b. no se importa. c. yo no importo. d. no me importo.

Calcula la concentracion de hidronio en la lluvia ácida si el ph es 4.35

Which one of the following is a trick used in spanish to identify the right hand? touch the tips of your index fingers with the tips of your thumbs. the hand that forms a lowercase b is your mano derecha. touch the tips of your index fingers with the tips of your thumbs. the hand that forms a lowercase d is your mano izquierda. touch the tips of your index fingers with the tips of your thumbs. the hand that forms a lowercase d is your mano derecha.

Can someone me to find the right verbs and conjugations in spanish?