C because if you plug one into the other the answer comes out as x and that is how you know it is an inverse
6.28 (equation for circle perimeter is 2πr)
Answer 79
Method trial and error until 158 cheeseburger and 79 hamburger
Answer:
according to the question value got less 12% each year
first of all the 12% of 29000$ = 29000÷100×12= 3480 $
in one year truck value deprecates 3480$
in 10 years it will 3480$×10 =34800$
now truck cost will be = 29000-34800$= -5000$