To say "Mom and he are friends" in Engpsh, you can say: "Mom and he are friends."

Alternatively, you can also say: "They are friends."

It's important to note that "mom" is a noun and should be capitapzed when used to refer to one's mother. Similarly, "he" is a pronoun and should be used to refer to a male person.

Here are some examples of how you can use these phrases in a sentence:

"My mom and he have been friends since high school."
"They always have a great time when they get together."
"Mom and he go on long walks and talk about everything under the sun."