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, , ,

The graph shows the distance y, in inches, a pendulum moves to the right (positive displacement) and to the left (negative displacement), for a given number of seconds x. how many seconds are required for the pendulum to move from its resting position and return? enter your answer in the box.

Write the pair of fractions as a pair of fractions with a common denominator

Asystem of linear equations with more equations than unknowns is sometimes called an overdetermined system. can such a system be consistent? illustrate your answer with a specific system of three equations in two unknowns. choose the correct answer below. a. yes, overdetermined systems can be consistent. for example, the system of equations below is consistent because it has the solution nothing. (type an ordered pair.) x 1 equals 2 comma x 2 equals 4 comma x 1 plus x 2 equals 6 b. no, overdetermined systems cannot be consistent because there are fewer free variables than equations. for example, the system of equations below has no solution. x 1 equals 2 comma x 2 equals 4 comma x 1 plus x 2 equals 12 c. yes, overdetermined systems can be consistent. for example, the system of equations below is consistent because it has the solution nothing. (type an ordered pair.) x 1 equals 2 comma x 2 equals 4 comma x 1 plus x 2 equals 8 d. no, overdetermined systems cannot be consistent because there are no free variables. for example, the system of equations below has no solution. x 1 equals 2 comma x 2 equals 4 comma x 1 plus x 2 equals 24