Answer:
A.
Step-by-step explanation:
In a Parallelogram , the opposite sides are equal as well as parallel, so proving that the opposite sides are equal and parallel will definitely prove it to be a Parallelogram
Company A: y=6x+12
Company B: y=5x+15
x is the variable for how many windows they clean.
A:
y=6(8)+12
y=48+12
y=60
B:
y=5(8)+15
y=40+15
y=55
Company B charges less for 8 windows.
A:
y=6(6)+12
y=36+12
y=48
B:
y=5(6)+15
y=30+15
y=45
Company B charges $3 less than Company a to clean 6 windows.
Square: 1, 9
even: 2, 6, 8, 10, 12
both: 4
X - y = 4
-y = -x + 4
-y ÷ -1 = (-x ÷ -1) + (4 ÷ -1)
y = x - 4 (y equals the entire ending equation)
___________________
x - 2y = 10
-2y = -x + 10
-2y / -2 = (-x ÷ -2) + (10 ÷ -2)
y = 0.5x + -5 (y equals the entire ending equation)
x doesn't have an equality on these kinds of equations