text: plz help me !!!!!!!!!!!!!1? ok, so i've got some math problems....it says "to pry the lid off a paint can, a screwdriver that is 17.5 centimeters long is used as a lever. it is placed so that 0.4 centimeter of its length extends inward from the rim of the can." then it asks: "write an equation that can be used to calculate the mechanical advantage" i have no clue where to begin with! try this web site...