Asia have cooked 7 kg of mashed potatoes for a dinner party it’s a gues a dinner party if the guest only ate 3/4 of them out he cooked how much did they eat

Me! i really need to get this right before 9. prove the divisibility of 7^6+7^5-7^4 by 11. use factoring so you get a number times 11. just tell me the number. i need this done asap