>>There is also a demonstrated connection between Egypt of the Pharaohs and the Americas (look it up yourself, I'm too busy to do your homework for you right now).<<

IOW, you have no explanation.

>>Since pre-Columbian inhabitants of the Americas WERE familiar with the mastodon, why would they not picture elephants seen (or drawn) by Egyptians with mastodons?<<

Because the artwork in the link is long after 10,000-year cut off for mastodons in North America. They were supposedly not in Mexico, Central and Soutn America, yet there are elephant depictions and many of them do not show mastodons but regular elephants.

Even the elephant pipe found in the Iowa mound shows a regular elephant and not a mastodon.

Find an answer and you'll be doing a lot more homework than just mine.