1. Suppose the price of ethyl alcohol rises by 20 %. As a result, the demand for substitute hand soap rises by 10 %.​

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. 

I'd say 8. i'd u don't so what u should u don't get what u want.

Answergoing for a brief walk ahead of time and stretching afterward;