Expression 1: left parenthesis, left parenthesis, StartFraction, "x" Over 100 , EndFraction , right parenthesis Superscript, left parenthesis, 1.0 negative StartFraction, "a" Over 100 , EndFraction , right parenthesis , Baseline , right parenthesis times 100 left brace, 0 less than "x" less than or equal to 100 , right bracex1001.0−a100·1000<x≤100