Which would you use to determine how much money you have left over to save each month?

I would use a bank. :) Please mark as brainlest.

Step-by-step explanation:

I would use a bank because it tracks what you spent your money on, it tells you how much you spent, and it tells you how much you have.

plz yuo

step-by-step explanation:

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

happy to

pls mark as brainliest.