When people leave a 15% or 20% tip they often round up to the nearest multiple of 5 or 10 cents. If Kadisha always rounds up what is a 20% tip on her bill?

What is her bill?

To do this on your own, you round up the amount by 5¢ or 10¢, whichever is closer, and then take 20% of her bill

Remember to put 20% into the calculator as 0.2 and multiply 0.2 by her bill that has been rounded up