A hot air balloon ascended to a height of 35 meters 2 minutes after launch. After some time, the balloon's altitude began to change by −3 1/4 meters every minute for 9 minutes. To avoid a tree, the hot air balloon flew up by 5 1/2 meters. What is the new altitude of the hot air balloon? I’m super confused! Please helpp.

Letter c i’d say

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.

No solution : there is no number of boxes that she bought