Anthony is making lemonade for the school carnival. The number of lemons he uses is a function of how many gallons of lemonade he makes: if he makes 1 gallon, he uses 6 lemons; if he makes 2 gallons, he uses 12 lemons; if he makes 3 gallons, he uses 18 lemons; and so on. He has exactly 36 lemons. What is the domain and range for the function?

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

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?

Rationalize the denominator- 12x/√x-10