<human>:  There are 29 pupils in a class. The teacher has 9 coupons; each coupon can be redeemed for 100 bottles of apple juice. The teacher gives each student 2 bottles of apple juice to drink for lunch. After redeeming all her coupons and giving each student their apple juice lunch, how many bottles of apple juice does the teacher have for herself?
<bot>: How many bottles of apple juice can the teacher redeem? ** The teacher can redeem her coupons for 9 * 100 = <<9*100=900>>900 bottles of apple juice.
How many bottles of apple juice do the pupils receive? ** In total, the pupils receive 29 * 2 = <<29*2=58>>58 bottles of apple juice from the teacher.
How many bottles of apple juice does the teacher have for herself? ** Thus the teacher has 900 - 58 = <<900-58=842>>842 bottles of apple juice for herself.
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