Another asvab question...?

im taking the asvab tommorow night..i rly suck at math but ive ben doing the practice test on military.com and have ben getting like 6 out of ten correct on each test and acing the englishes. but i just need to no what are some main math topics i need to study (ratios, percentages, etc) and another my nephews stepmom said they wont send me to basic really quickly so my question is how soon is the soonest i can get sent i want to get out of this hell hole known as Spartanburg, SC asap thx guys (and chics)