Part A Marley used 7 cups of water to make 4 loaves of French bread.

What equation can be used to model the total cups of water needed y for making x loaves of French bread? Write the equation in the form y =kx .

Part B
How many cups of water do you need for 6 loaves of French bread? Express your answer as a mixed number written in simplest form.

If kn = 9 cm, mn = 21 cm, rs = 42 cm, and ps = 18 cm, what is the scale factor of figure klmn to figure pqrs?

If you could answer these your a life saver

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