can someone recommend a really good book on this material.. starting from pre-algebra and going into advanced stuff like Calculus... i really need to pass this exam so i need help

i don't even know where i need more practice and what i need to study.. i took a portion of the exam already and i studied for it by doing the sample practice problems from the college's site but once i got there to take the exam the stuff on it was moslty word problems (percents, fractions..)