1.) A probability experiment consists of determining a high school student's grade level (freshman, sophomore, junior, senior) and gender (male, female). Using a tree diagram, determine the number of
outcomes and identify the sample space. What is the probability of randomly selecting a junior or a
female? What is the probability of randomly selecting a senior and a male?

What two consecutive odd integers have a sum of -28

When keisha installed a fence along the 200 foot perimeter of her rectangular back yard, she left an opening for a gate. in the diagram below, she used x to represent the length in feet of the gate? what is the value? a. 10 b. 20 c. 25 d. 30

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