When did Christopher Columbus discover america​

How could indian agents profit their assignments?

When there are advances in technology, such as the personal computer, how might business productivity change? a) productivity is separate from technological advances so there is no impact. the new technology can replace outdated, less efficient, machinery. o) the businesses' products will no longer be demanded. d) manufactured items will be made elsewhere.

Which of the following cultures were among the earliest known inhabitants of north america? a) mayab) incac) anasazi d) olmec