Answer:Go on a graph calolator
Step-by-step explanation:
calul
Answer:
<h2>x = -8 or x = 2</h2>
Step-by-step explanation:

X=2 because first you have to combine like terms. Than you have to bring the Varible on one side. Finally you solve for the Varible and you get the answer2.
The final price is the cost plus the tax.
Since we know the tax and a percent, we can write this as
T = C(1+r)
T = what Graham paid = $87.45
C = cost before tax
r = tax rate expressed as a decimal = .40
Plugging in what we know
87.45 = C (1+.4)
87.45 = C(1.4)
Divide both sides by 1.4
C = $62.46
answer is 5.58
wait I explain it in some time