Given $g$ and $h$ as defined below, determine $g + h$, $g - h$, $gh$, and $\frac{g}{h}$. Using interval notation, report the domain of each result. $g(x) = 4 + \sqrt{x}$ and $h(x) = -2x + 18$ (a) $(g + h)(x) = $ Domain of $(g + h)(x)$: (b) $(g - h)(x) = $ Domain of $(g - h)(x)$: (c) $(gh)(x) = $ Domain of $(gh)(x)$: (d) $(\frac{g}{h})(x) = $ Domain of $(\frac{g}{h})(x)$:
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