By rounding each number to 1sf estimate the answers to 8.2*6.7/ 0.46

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?

The graph of a hyperbola is shown. what are the coordinates of a vertex of the hyperbola? (0, −4) (−3, 0) (0, 0) (0, 5)