3h + 4, where h = 7 pls help​

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Step-by-step explanation:

1. we need to substitute h

so it would look like:

Hope this helps and answers your question! Have a great day/night!

sorry, i can't understand your question. will later if you describe more clearly!

: )

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value