Which of the following lists of ordered pairs is a function? A. (1,7), (2,5), (3,6). (4,1)
B. (2,5), (3, 8). (4, 11),(4,12)
C. (0,4), (1, 2), (1, 0), (2,3)
D. (3,-2), (2, -1), (3, 4), (4,7)

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.

your answer would be 12

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w

answer: c.  

step-by-step explanation:

mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.