30 points, please help.
1) which property is illustrated by the following statement?
----
3x (-5) = (-5) 3x
a. commutative property of addition
b. associative property of addition
c. commutative property of multiplication
d. inverse property of multiplication
2) which property is illustrated by the following statement?
----
3z + 4 = 4 + 3z
a. associative property of addition
b. commutative property of multiplication
c. inverse property of multiplication
d. commutative property of addition
3) order the following numbers from least to greatest.
----
, -0.4,
, 0.8,
a. 0.8,
,
,
, -0.4
b.
,
, 0.8,
, -0.4
c.
, -0.4, 0.8,
,
d. -0.4, 0.8,
,
,