the missing value will be -36 because if you multiplied it with 4 you will only have to add another -4 to get -144
Answer:

Step-by-step explanation:
Standard form is Ax + By = C, so we want x to be on the left side
To accomplish this, subtract 1/4x from both sides.

Multiply by -4 to get x to be equal to 1.

I’m not sure what that is
Answer:
the answer is B. as you can see from the graph Mitchell spent about 8.00 in an hour so he spent more
Answer:
0
Step-by-step explanation:
Multiplying the first equation by xy, we have ...
x^2 +y^2 = -xy
Factoring the expression of interest, we have ...
x^3 -y^3 = (x -y)(x^2 +xy +y^2)
Substituting for xy using the first expression we found, this is ...
x^3 -y^3 = (x -y)(x^2 -(x^2 +y^2) +y^2) = (x -y)(0) = 0
The value of x^3 -y^3 is 0.