To determine how many hours Maria still needs to spend to complete her community service program, we can set up the equation based on the information given:
Maria's total required hours is \( 512 \) hours, and she has already completed \( 334 \) hours. The hours she still needs to complete can be represented as \( h \).
The correct equation to find \( h \) is: \[ h + 334 = 512 \]
This reads as: the hours she still needs to complete (h) plus the hours she has already completed (334) equals the total hours required (512).
So the correct response is:
h + 334 = 512