(-a + (-b)) + (-c) = -(a + b) + (-c) A:associative
B:commutative
C:distributive
D:opposite of a sum

#1-20 state whether the angles are alternate interior, alternate exterior, vertical, or corresponding angles.

An investment decreases in value by 30% in the first year and decreases by 40% in the second year. what is the percent decrease in percentage in the investment after two years

Sasha delivers newspapers to subscribers that live within a 4 block radius of her house. sasha's house is located at point (0, -1). points a, b, c, d, and e represent the houses of some of the subscribers to the newspaper. to which houses does sasha deliver newspapers?