Posted by Danny on Sunday, May 27, 2012 at 11:09am.
A certain lock has four tumblers, and each tumbler can assume three positions. How many different possibilities are there?

ALGEBRA  jenny, Sunday, May 27, 2012 at 11:15am
3^4=81
Posted by Danny on Sunday, May 27, 2012 at 11:09am.
A certain lock has four tumblers, and each tumbler can assume three positions. How many different possibilities are there?
3^4=81