You will need to subtract if u are taking 15% off
7,265 is the average of those two numbers, though i am not sure what the sign that is mentioned is
Yes you would have enough for 2 batches of cookies
So we need to cover 5.5% into a decimal.
0.055 = 5.5%
The house value is 120,000.
So
(1.055x) * (120,000)=
So
f(x)=1.055x * 120,000
The answer is No, they are not proportional. This is because 8/42 is not equal to 20/105.