B. Choose the letter of the correct answer. Read each problem carefully and solve. 2. Find the volume of a rectangular box whose dimensions are as follows: length 9x - 6, width 4x + 5, and height -3x -8. * 3 points a. -108x^3 - 351x^2 - 78x + 240 b. 108x^3 - 351x^2 + 78x - 240 c. -108x^3 - 225x^2 + 78x -240 d. None of the above 3. If 4w^2 - 4w + 5 is multiplied by 6w + 3, what is the product? * 3 points a. 24w^3 - 12w^2 + 18w + 8 b. 24w^3 - 12w^2 + 18w + 15 c. -24w^3 + 12w^2 + 18w + 15 d. None of the above 1. Find the product when 7x^2 + 6x + 57 is multiplied by 3x + 8. * 3 points a. 23x^3 + 74x^2 + 219x + 456 b. 21x^3 + 74x^2 + 219x + 456 c. 21x^3 + 38x^2 + 219x + 456 d. None of the above Answer that please :D :)

{x = -1/2 ,   y = -1

step-by-step explanation:

solve the following system:

{2 x + y = -2

{10 x - 3 y = -2

in the first equation, look to solve for y:

{2 x + y = -2

{10 x - 3 y = -2

subtract 2 x from both sides:

{y = -2 x - 2

{10 x - 3 y = -2

substitute y = -2 x - 2 into the second equation:

{y = -2 x - 2

{10 x - 3 (-2 x - 2) = -2

10 x - 3 (-2 x - 2) = (6 x + 6) + 10 x = 16 x + 6:

{y = -2 x - 2

{16 x + 6 = -2

in the second equation, look to solve for x:

{y = -2 x - 2

{16 x + 6 = -2

subtract 6 from both sides:

{y = -2 x - 2

{16 x = -8

divide both sides by 16:

{y = -2 x - 2

{x = -1/2

substitute x = -1/2 into the first equation:

{y = -1

{x = -1/2

collect results in alphabetical order:

answer:   {x = -1/2 ,   y = -1

the answer for your question is

step-by-step explanation:

your mom

step-by-step explanation: