She would have to pay $3.40 I think. A 12-pack is half the size of a 24-pack so I did half the price.
She could switch them around by grouping them into groups of 4s, 3s, 2s, or 5s.
The sound intensity of rustling leaves, y = 20 decibels
<u>Step-by-step explanation:</u>
y = 10logx
The sound intensity of rustling leaves is 100 times the reference intensity.
x = ratio of intensity of sound to reference to intensity
x = 100:1 or x = 100
y = 10 log(100) = 10 * 2 = 20 decibels
y = 20 decibels
