answer: 5.34
Step by step explanation 12.75 + 13.95=26.7
20% of 26.7 is 5.34
(-5)-(6)-(6)
-5+-6
-11+-6
-17
-17 is the answer you are looking for.
Y=2x^3 is nonlinear, since it's a cube equation. y=x+5 is linear, because it's a line with y intercept (0,-5) and slope 1. y=\sqrt(x-5) is nonlinear, because it's a quadratic equation when reversing x and y. 5x+5y=25 is equal to x+y=5 ot y=-x+5, which is also linear. y=x^2/2 is a quadratic equation, so it's nonlinear.
If an item you own is damaged or stolen, insurance will give you money to replace it.
This is equivalent to finding a function g in which

.
We simply reverse the actions of the initial function by adding 81 back and taking the square root. Therefore,

.