Acandle is 17 in. tall after burning for 3 hours. after 5 hours, it is 15 in. tall. write a linear equation to model the relationship between height h of the candle and time t. predict how tall the candle will be after burning 8 hours.

This is about circle theorems. someone asap : (

Can anyone with some algebra 1 homework? : )

Abag contains 5 red marbles , 6 blue marbles and 4 green marbles. susie selects a marble and returns it to the bag before selecting another marble. if susie selects a red marble 6 out of 20 times, what is the experimental probability that the next marble she selects will be a red marble ?