Sandy earns $50K per year at her job. She puts 10% of her pay away into her retirement account. How much does she put away each month?

Find dy/dx using implicit differentiation ln(20+e^xy)=y

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?