$76 is spelled out as seventy-six. When using numbers in a sentence, it is important to spell out small numbers such as this one. For larger numbers, you can use Arabic numerals such as 76.
It can also be written out in different ways such as seventy dollars and sixty-six cents or seventy-six dollars. Depending on the context of the sentence, the way you spell out 76 will vary.
In general, when writing out numerical values for money, it is important to use the correct form (dollars and cents). For example "Seventy-six dollars and 23 cents" would be the correct form for 76.23.
For more information about spelling out numbers check out this link: https://www.grammarly.com/blog/how-to-write-numbers/