Can u show the whole question
Answer:
Some ways of saving energy include : turn off the fan / lights when you leave a room, hang your clothes out to dry, don't run your dishwasher half full, turn off the water when your not using it, don't stand in front of an open refrigerator door. Hope this helps :)
IT IS 180 because 12*15 is one 180 and it cant go over 187.
There 25 possible positions for each dial. Multiply the number of each dial by each other:
25 x 25 x 25 x 25 x 25 = 9,765,625 possible combinations.