Acommuter has $245 in his savings account. this account changes by -$15 each week when he buys a ticket. in one time period, the account changed by $240. for how many weeks did the commuter buy tickets? how much must he add to his account if he wants to have 20 weeks worth of tickets in his account?

16 weeks. $300. hope its right but sorry if wrong

The academic affairs council is the highest expert body processing academic affairs, as stipulated by the university statutes. specialist aaro häkkinen (educational policy) took part in the council’s meeting. the agenda of the meeting included bachelors’ feedback, the timing of pedagogical studies, the grant system for tuition fees, the standardisation of administrative practices for internships and the situation of foreign-language and multilingual master’s programmes.