In art class, Hayley is attaching strings to puppets to make marionettes. For each puppet, she ties 16 centimeters of string to the head and 22 centimeters of string to each of the 2 arms. How many meters of string does Hayley use for each puppet?

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.

b.-4 units

all you   do is count how many times you move