Your Answer Is $7.50 Because 3/4 Of $10 Is $7.50
Answer:

Step-by-step explanation:
As square root value is written with both + and - signs
In Given case:
A polynomial has root 
= ±3.316
Also 
= ±3.316
Hence
is also root of the polynomial!
Answer:
∠A = 70°
Step-by-step explanation:
I'm... guessing this is what you mean? It would've been helpful if you'd provided pictures.
Since all parallelograms consist of two pairs of vertically opposite angles, ∠A and ∠C are equivalent.
Which means that 2x + 50 = 3x + 40.
In which you solve the equation.
2x + 50 = 3x + 40
-2x -2x
50 = x + 40
-40 -40
x = 10
Now, to find ∠A, substitute x into the equation:
∠A = 2x + 50
x = 10
∠A = 20 + 50
∠A = 70
Hence, ∠A = 70°
That water has a greater freezing point then gasoline