Ken went to the store for his mother. he spent $2.37 on groceries. in addition, his mother said he could spend $0.35 on candy. what was his change from a five dollar bill?

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