Answer:
1. 72, 2. 36, 3. 80, 4. 54
Step-by-step explanation:
9514 1404 393
Answer:
(x -y -1)(x +y)
Step-by-step explanation:
The expression can be factored by grouping.
x^2 -y^2 -x -y = (x^2 -y^2) -(x +y)
= (x -y)(x +y) -1(x +y)
= (x -y -1)(x +y)
_____
It is useful to know that a difference of squares is factored as ...
a^2 -b^2 = (a -b)(a +b)
Answer:
10.36
Step-by-step explanation:
129.50*.08 is 10.36
in paying with tax, you pay 129.50+10.36
139.86
