How many solutions does
-8x-3x=-11x
have?

0if x and y vary inversely and y=6 as x=7, what is the constant of variation?

Bring the fraction a/a-4 to a denominator of 16-a^2

The constitution gives congress the power to create federal courts lower than the supreme court higher than the supreme court equal to the supreme court, unaffected by the supreme court.