Acompound of two chemicals is mixed in a ratio of 3: 12 if there are 45l of the compound how much of each chemical is in the mixture

Si la base de un triángulo isósceles mide 70 m y el ángulo opuesto a ésta mide 58°; entonces ¿cuánto mide la altura de dicho triángulo? a) 21.87 m. b) 40.01 m. c) 43.74 m. d) 63.14 m.

Factor the expression using gcf 9b+45

Which word in the sentence below is an interrogative pronoun? who is picking us up from school? whousisfrom