Jessica knows that she should spend no more than 1/3 of her income on her rent. She really wants to move into a condo downtown and has found a great place where the rent is $2,300 per month. Based on that, how much should Jessica earn each month to afford the rent on her cool new place? Show your work and make sure to create an equation.

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters

Joe has a rectangular chicken coop. the length of the coop is 4 feet less than twice the width. the area of the chicken coop is 510 square feet. what is the length of the chicken coup?

Which of the following is the graph of y= square root -x-3