A new car is purchased for $13,000. Each year, the value of the car is only 80% of what it was the previous year. Which expression can be used to determine the car's value after t years?
A. [13,000(0.8)]t
B. 13,000(0.8)(t)
C. 13,000(0.8)t
D. 13,000(t)0.8

Question

A new car is purchased for $13,000. Each year, the value of the car is only 80% of what it was the previous year. Which expression can be used to determine the car's value after t years?
	A. 	 [13,000(0.8)]t
	B. 	 13,000(0.8)(t)
	C. 	 13,000(0.8)t
	D. 	 13,000(t)0.8

anonymous · Answer

after first year: 13000x0.8
after 2nd year: 13000x0.8x0.8
after 3rd year: 13000x0.8x0.8x0.8
after t years: (13000x0.8)^t

anonymous · Answer

so then C, right?