10.
http://wiki.answers.com/Q/How_many_cents_are_in_on...

Trying to count the ridges on a dime is pretty tough; there are 118 ridges on there! This is quite a few when you consider that the coin is only 17.91 mm in diameter.
http://www.ask.com/webanswers/Reference/Dictionar...

There are 10 cents in a dime. 10 pennies equal 10 cents. 2 nickels equal 10 cents.
http://www.kgbanswers.co.uk/howmanycentsinadi...

One acre is equal to 43,560 square feet! If you can picture a football field it is about 3/4 the size of that as well. That kind of gives you a picture in your head.
http://www.ask.com/webanswers/Reference/Other/how...
