For the wheel shown, what is the order of rotational symmetry?

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

Which number line represents the solution set for the inequality -1/2x> 24?

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?