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