This is how the money line would be displayed visually :
( the way you will see it on your computer screen when placing a bet ):

			Moneyline	Total
501	Giants	-3	-155	Over 35
502	Cowboys	+3	+135	Under 35

The total of a game is always posted on the same line as the favorite. So what these lines tell you is that the total in the Giants, Cowboys game is 35 points.

If you bet over the total and the final score is :

GIANTS 21 COWBOYS 17 Total = 38 You would win your wager.

GIANTS 19 COWBOYS 14 Total = 33 You would lose your wager.

GIANTS 21 COWBOYS 14 Total = 35 You would push* your bet.

*A push means that, taking the point spread into account, The Game was a tie. In the case of a push all funds are returned to you your wager plus the juice.

Conversely, if you bet UNDER the total :
If you bet under the total and the final score is :

GIANTS 21 COWBOYS 17 Total = 38 You would lose your wager.

GIANTS 19 COWBOYS 14 Total = 33 You would win your wager.

GIANTS 21 COWBOYS 14 Total = 35 You would push* your bet.