<span>Linear pair
Postulate. Two angles are a linear pair if the angles
are adjacent and the two unshared rays form a line. Below is an example of a linear pair: The linear pair postulate states that
two angles that form a linear pair are
supplementary.</span>
You multiply the 4.00 by 0.10 to get the 10% discount amount. Then you subtract that from $4.00. Then you multiply that amount by 1.06 to get the total with the 6% sales tax. To get $3.82 rounded to the nearest cent.
