Answer:
-513.22
Step-by-step explanation:
I don't think they earned any profit. but instead lost money. Sorry it was wrong at first, I misread something.
Answer: Y=20
Step-by-step explanation:
X is doubled from 3 to 6 meaning that y is also doubled.
Double 10 is 20 so y=20.
Take the first 2 and take out -7x2. bringing it to (-7x2)(x-3)+(3x-9)
then take out 3 on the right side.
-7x^2 (x-3)+3 (x-3)
factors to (3-7x2)(x-3)
The discount is $231.57 , the price after discount would be $283.03
The answer is : square root of 14 is between 3 and 4
√14= 3.74
