Trial and error on this one try each pair till you find negative slopes
C and D
Answer:
Step-by-step explanation:
We know that g = -3 and h = 5
Plugging in the values for g and h you will get:



Final answer is 
9.This is because it goes through the whole circle passing through the centre point. at the full width
The rest are pretty easy. I'm sure you can manage. Good luck!
Answer:
x+2/5x
Step-by-step explanation:
x%of 40 is 2/5x
...40 increased by x% of it self = x+2/5x