HELP NOW PLEASE ANSWER THE QUESTION THE PICTURE IS ATTACHED BELOW

the body's situation won't change the forces are equal opposit and on the same body

the old price per ounce is c/4.

the new price per ounce is c/3.6.

the ratio of the old price to the new one is

(c/4)/(c/3.6) = (c/c)×(3.6/4) = 0.9 . . = 9/10 . . "nine tenths" in either form

it's a b and

elctricity and magnet is conversion to it