if two complementary angles have measures of (2y+25)° and (4y-22)°, what is the measure of the smaller angle?

Which expression is not a polynomial?

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 radius of a sphere is 3 inches. which represents the volume of the sphere?