B) Mrs Sarita lends 3000 to her friend every month and borrows 2500. How much will she owe to her friend/her friend owe to her after 4 months?​

If it's a smaller child or infant, place one on the middle of the chest and on the child's back. (if it is a bigger child with enough room for two, place one on the upper right/your left of the chest, and one on the lower left/your right) the pads should never touch each other.