1. what is the simplified form of the expression? 7m^2 + 6.5n - 4n + 2.5m^2 - n a 9.5m^2 + 1.5n b 4.5m^2 + 1.5n c 1.5m^2 - 4.2n d 9.5m^2 - 1.5n 2. what is the product? 4 • (-5) a -20 b 20 c -1 d -9 3. which property is illustrated by the statment? 2(-6/7) = (-6/7)2 a associative property of addition b inverse property of multiplication c commutative property of multiplication d commutative property of addition 4. which property is illustrated by the statment? 3.2 + 4 = 4 + 3.2 a associative property of additional b commutative property of multiplication c inverse propertys of multiplication d commutative property of addition