
a. The gradient is


b. The gradient at point P(1, 2) is

c. The derivative of
at P in the direction of
is

It looks like

so that

Then


Do 27 - 10 = 17∠ 10
Your welcome
Answer:
5/2 improper, 2 1/2 proper
First let's calculate the profit in the deal, subtracting the market value and the selling value:

So the profit is $55,000.
Now, calculating the fee of 10% of the profit, we have:

So the fee is $5,500, therefore the correct option is the fourth one.
1000 grams = 1 kilogram
2000 grams = 2 kilograms
4000 grams = 4 kilograms
7000 grams = 7 kilograms
8000 grams = 8 kilograms