Recall that, an absolute value expression is a piece-wise in effect, thus we'd check the single-sided limits,
8(highest)+535(lowest)=543
an easy way to get the answer is to just add the two numbers together because your just trying to find how far it is between -535 and a positive 8.
A = 6s²
a) s = 3in, subtitute
A = 6 · 3² = 6 · 9 = 54 (in²)
b) s = 1.5 m, subtitute
A = 6 · 1.5² = 6 · 2.25 = 13.5 (m²)