hey guys i just took my car in for inspection II (-$780

) anyways they recommended i get these replaced:
-Flush Due
-Drive Belt Cracked
-Front Control Arm Bushings Flex Disc Cracked
are these serious? cause they're like 180, 350, 400+
and im all out cause of this insII....
is it ok to drive my car or are these serious problems?? and what do these do exactly?
well thanks alot in advance!!
-Ron