Ahot air balloon is at an altitude of 240 feet. the balloon descends 30 feet per minute. what equation gives the altitude y, in feet, of the hot-air balloon after x minutes?
6th grade go math
plz explain how you found the answer!
you!

Suppose a ball is dropped fromca height of 6ft. it bounces back up but time it bounces, it reaches only 7/10 of its pervious height. what is the total of each height that the ball reaches after 5 bounces

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?

Give all possible names for the line shown.calculation tip: lines can be written with either point first.