Ask your own question, for FREE!
Mathematics 17 Online
OpenStudy (anonymous):

How can you quickly calculate 20 percent of any bill amount?

OpenStudy (anonymous):

divide by 5

OpenStudy (amistre64):

double 10

OpenStudy (amistre64):

ask the waiter how much 20% is :)

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!