Aclerk was assigned to a register for two hours. the clerk was given $80 in various bills and $150 in quarters so that he could make change. he placed this money in the drawer. at the end of the two hours of working, the clerk had a total of $1375.75 in the drawer. the percent of this total which represents the money collected is most nearly-< br /> a. 15%, b. 63%, c. 78%, or d. 83%