Answer:

Step-by-step explanation:
Apply FOIL method: 


Apply minus - plus rules


Simplify
Multiply 

Multiply 

Multiply 

Combine like terms

Multiply 


It depends on the percentage rate of said tax... is the tax rate 5%? 20%?
Answer:
-20
Step-by-step explanation:
5
x
−
4
y
=
−
20
Find the x-intercepts.
Tap for more steps...
x-intercept(s):
(
−
4
,
0
)
Find the y-intercepts.
y-intercept(s):
(
0
,
5
)
List the intersections.
x-intercept(s):
(
−
4
,
0
)
y-intercept(s):
(
0
,
5
)
You should use the calculator and just plug in those numbers
Answer:
40%
Step-by-step explanation:
10000 = 5000 = 50% + 9000 = 40%