A)
x = -y -2
y = -x -2
B)
0.5x + y = 1
0.5x + (-x -2) = 1
-0.5x -2 = 1
-0.5x = 3
x = -6
Area of a triangle is equal to 1/2 b(h) so since you already have the height and base, all you need to do is input it back into the equation:

(10)(13)
Multiply 10 & 13 to equal

(130)
Then take half of 130 to get
A = 65
Answer:
48 quarts = 12 gallons
Step-by-step explanation:
The 6 in the hundred thousands place in tens times greater than the 6 in the ten hundreds place
B) Is the correct answer
We know it's B because it's a one off cost and isn't effected by x ( the amount of songs purchased )