Answer:
a) "ascend"
Step-by-step explanation:
a)
The equation is 
This question is asking for the value of the directional derivative in the direction of -j [since south that's y negative]
So, this is the negative of partial derivative of y. Thus we have:

Now we are at (100,120,1106), we take y value of 120 and put it in the partial:

We take the negative, that is -(-2.4) = 2.4
Since this is positive, we can say the hill is sloping upward at this point, so you will start to ascend.
Answer:
B I hope this helps.......
find the square root and of 1+i√3
41.00
25% off $45 is 33.75
You then add 7.25 to 33.75 which is $41
The first, third, fifth and sixth one are all functions.