Selma packs one box in 5 minutes and has already packed 12 boxes. her friend trudy packs one box in 7 minutes and has all ready packed 18 boxes. how many more minutes does each need to work in order to have packed the same number of boxes?

Will mark brainliest for correct answer! i have been on this problem for an hour and can't find the answer. i'm begging here! incase you cant read the instructions in the picture because of too much or too little lighting: note: enter your answer and show all the steps that you use to solve this problem in the space provided.write a list of steps that are needed to find the measure of b. provide all steps as clear as possible, !