Name the number property illustrated by this equation: 4.78+(2.5+12.66)=4.78+(12.66+2.5) pleaese show your work or explain

This is the commutative property of addition

This property is the idea of adding any two numbers in any order you want. For example: 2+3 = 3+2 = 5

In this problem, we have 2.5+12.66 the same as 12.66+2.5

$22. if larry's profit were to minimize by one for every hour his store were to be closed, we would subtract 30 by 8.