Answer:
The slope of the two points is 2. (8/4)
(Original Price $425.4)
$328 × 30% = 98.4
328 + 98.4 = $426.40
Answer: The original price of brownie was $2.1 each.
Step-by-step explanation:
since we have given that
Let the original price will be x
Number of brownie purchased = 8
According to question , each brownie costs $0.20 less than the original price.
So, it becomes

Hence, the original price of brownie was $2.1 each.
-x+3x=2x
2x=2+6
2x=8
8/2=4
x=4