Answer:
multiply first equation by 2 in order to have same amount of x in both equations
2x-4y=6 now subtract equations
y=3 thus x=9
Because zero is neither positive nor negative, the term nonnegative is sometimes used to refer to a number that is either positive or zero, while nonpositive is used to refer to a number that is either negative or zero. Zero is a neutral number.
She paid .43¢ or .44¢for each pound
<span>infinite number of significant figures would be your answer </span>