If your annual salary is 24700 what is your monthly salary

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

Thomas is using a drawing program to complete a construction. which construction could he be completing? two perpendicular lines are drawn. inscribing an equilateral triangle in a circle inscribing a square in a circle inscribing a regular pentagon in a circle inscribing a regular hexagon in a circle

Which is the best estimate of the product of 0.9 x 0.88? 0 0.25 0.5 1