Add these measurements 56 mg plus 3.211 g

You need to change milligrams into grams: 56mg=0.056g

So : 0.056+3.211 =3.267 g

the word that best describes martin luther king jr.'s tone in the video is dignified

martin luther king, jr. was a social activist and baptist minister who played a key role in the american civil rights movement from the mid-1950s until his assassination in 1968. the video shows his manner and attitude having or showing a composed or serious manner that is worthy of respect so dignified is the correct answer