Aclassmate decides to determine how many hours the average student at your school spends texting. to conduct her research, she interveiws 20 of her freinds. what kind of sample is this

Give reason why some traditional caribbean customs are presently changing

24-karat gold is considered to be pure gold. 18-karat gold is considered to be about 75% gold. what is 18-karat gold considered a mixture rather than a pure substance? a) it has a variable composition of other elements and minerals. b) its color is different than pure gold. c) the gold atoms are not arranged in a repeating pattern. d) it can be melted and transformed into a different substance.

What was the midwest states often called because they were located in the center of the nation