They are currently 64 million cars in a certain country decreasing by 7.7% annually how many years will it take for this country to have 43 million cars

Step-by-step explanation:

There are currently 68 million cars in a certain country, increasingly by 1.8% annually. How many years will it take until this country has 81 million cars? Answer by ... A general equation which can be used for exponential growth (or decay) is: ... years, etc.) "A" is the amount after t units of time have passed.