What property is this? -5 + (5 + 3)
A) Multiplicative Identity
B) Multiplicative Inverse
C) Commutative Property
D) Associative Property
E) Distributive Property

thx...

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

The ratio of rock songs to dance songs on jonathan’s mp3 player is 5: 6. the total number of rock and dance songs jonathan has is between 101 120. how many rock songs does he have?

Four individuals pool money together to start a new business and agree to split the profits equally. n invests $6,000, x invests $2,000, y invests $8,000 and z invests $4,000. if the profits for the first month were $100,000, y receives than if the profits were divided in proportion to how much they invested.