50 points and will mark first correct answer brainliest!

Find the average speed of a rabbit that runs a distance of 22 m in a time of 1.8 s .

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

Olga bought a new skirt that cost $20. sales tax is 5%. how much did olga pay, including sales tax? 7.