What is 0.059% of 690 round to the nearest hundred

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|

Alakefront cottage that is 30 feet high casts a shadow on the water. how long is that shadow if a 16-foot-high truck parked nearby casts an 8-foot shadow?

Carl is boarding a plane. he has 22 checked bags of equal weight and a backpack that weighs 4 \text{ kg}4 kg. the total weight of carl's baggage is 35 \text{ kg}35 kg.