Attack Bonus

Your attack bonus with a melee weapon is:

Base attack bonus + Strength modifier

Your attack bonus with a ranged weapon is:

Base attack bonus + Dexterity modifier

Base Attack Bonus: Found on your class page. This bonus is added to your total attack score. In later levels you receive access to a second attack, and eventually can naturally attack up to three times a round using a full action (Flurry, Rapid Shot and Burst of Speed can grant up to a fourth attack).