Your first step is to isolate y and put it into slope-intercept form.
Then graph
See screenshots below
A regular hexagon have an interior angle of 120°, while a regular decagon have an interior angle of 144°.
The regular hexagon will tessellate because 3 hexagons can be tessellated at a point. (360° / 120° = 3)
The regular decagon will not tessellate because 360° is not divisible by 144°.
Answer:
The function h(x) is increasing on the interval (5, ∞)
Step-by-step explanation:

Since we cannot take a square root of a negative number, the domain of this function is restricted to x ≥ 5
If the domain is restricted to x ≥ 5, then the function is always increasing,
since h(x) ≥ 0
Therefore:
The function h(x) is increasing on the interval (5, ∞)