Eight hundred tickets are sold for a play. thirty-five percent of those tickets were sold in advance. which equation can be used to find the number of tickets sold in advance? a.800/8/35/8=100/4.375 b.100/8/800/8=12.5/100 c.35x8/800x8=280/6400 d.35x8/100x8=280/800

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.