Answer:
k=39
Step-by-step explanation:
-30 + k = 9
k=9+30
k=39
X=2
As both triangles share a same side length of 5, and the angles are both 30degrees, assuming the triangles meet at the centre of the circle then both sides (x) must be the same.
(r-c)(3) means that you will simply plug in the value 3 as x in the functions r(x) and c(x) and take the difference of both.
Solving for the value of the functions we'll get:



Since the value is positive, we can say that the store will profit in its third month. Knowing that r(x) and c(x) is measured in hundreds of dollars, we can also say that the profit will be $3400.
ANSWER: C. The new store will have a profit of $3400 after its third month in business.
The answer to the question is