If julie and erin use the brown yarn they have to make 4 dolls, how much yarn can they use for each doll?

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

The serenity and the mystic are sail boats. the serenity and the mystic start at the same point and travel away from each other in opposite directions. the serenity travels at 16 mph and the mystic travels at 19 mph. how far apart will they be in 3 hours?

If a and −a are numbers on the number line, which expression must give the distance between them? a) 0 b) a c) |2a| d) |a|