Alight year is a measure of
brightness
speed
time
distance
acceleration

There is only one copy machine at your office. you have to make 1000 copies of an expense report. after you begin copying, two other employees show up in the copy room. each has to make only 10 copies each. what is the proper etiquette in this situation?

Which aspects of parenting are legally required?

How could you find out if that advice is based in scientific evidence?