Answer: The required discount is $819 and the rate of discount is 20.48%.
Step-by-step explanation: Given that a home theater system is marked down from $3999 to $3180.
We are to find the discount and the rate of discount.
The discount will be given by actual price minus the marked price.
We have
Actual price = $ 3999 and marked price = $3180.
So, the discount is given by

And the rate of discount is

Thus, the required discount is $819 and the rate of discount is 20.48%.
We have been given that target sells a pack of iTunes gift cards for $40. Sam's Club sells them for $38.88. We are asked to find the percent decrease from Target's price to Sam's Club's price.
We will use percent decrease formula to solve our given problem.






Therefore, the percent decrease from Target's price to Sam's Club's price is 2.8%.
Answer:
y-5=-2(x+3)
Step-by-step explanation:
y-y1=m(x-x1)
m=-2
y-5=-2(x-(-3))
y-5=-2(x+3)
Answer:
x = 36
Step-by-step explanation: