The age old question of how much should a student practice for their private music lessons. There are many answers because every student is different. Sometimes your teacher will tell you to practice a specific amount of time each week. Sometimes your music teacher will ask you to practice a section of music a set number of times. A fun variation is to practice your age.
In any case all of the above and more will be asked of you but in short, consistently is always the best answer. Your teacher would rather you practice 15 minutes per day then an hour and a half one time per week. This is a universal truth.