Adepartment store advertised that for every $25 you spend at the store, you get $2 off your total bill. nate's bill came to $154 before the discount. he figured he would get a $12 discount. is his claim reasonable? explain.

Solve for x i'll try to attach the files bc it's not letting me for some reason

Carson has only $20 bills and $10 bill in her wallet. the total value of the bills is $50. she has 1 more $20 bill than $10 bills. how many each kind of bill does carson have? a. one $20 and two $10 bills b. two $20 bills and one $10 bill c. one $20 bills and three $10 bills d. two $20 bills and two $10 bills

How can you tell when x and y are not directly proportional?