Ava is saving for a new computer that costs $1218.she has already saved half of the money. ava earns $14.00 per hour. how many hours must ava work in order to save the rest of the money

Samantha swam upstream for some distance in one hour. she then swam downstream the same river for the same distance in only 12 minutes. if the river flows at 4 mph, how fast can samantha swim in still water?

Two lines parallel to the same plane are parallel to eachother

Could somebody me with this radical simplification?