If the numbers 1 2 3 4 5 are to be used in a five number code how many different codes are possible if reputitions are not permitted

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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.

Solve the formula ax+ by = c for x.