Help with permutations (no links or files) How many ways can 3 different books, 5 chemistry books, and 7 physics books be arranged on a shelf if the books of each subject must be kept together?

Scott’s bank account showed a balance of $750 on sunday. during the next five days, he made one deposit of $140 and numerous withdrawals of $180 each. let x represent the number of withdrawals that scott made. write an inequality that can be used to find the maximum number of withdrawals that scott could have made and maintain a balance of at least $100. do not use a dollar sign ($) in your response.