Question

PLEASE HELP

Arthur is treating his friends to a meal at Chez Rich. The meals added up to $136.45.
If he tips the waiter 15%, what is the amount of the tip?
Mind you, I've already done the math on a calculator (20.4675) but there are two VERY close answers....
Is it 20.46
or 20.47? it does not tell me to round but I'm still not sure of what to do and this is for my semester test so I don't want to lose any points

Answer 1

im pretty sure 20.47

Explanation:

even though it doesnt tell you to round up, i think you should still be safe and round up to the nearest hundred