Answer: Equation to solve the problem :
There was 243 customers on 5th day .
Step-by-step explanation:
Given: The number of customers at a new taco truck triples every day for a week. the function represents the number of customers on day x.
Substitute f(x) =243 in the given equation , we get
Also, we know that
The bases are same it implies the exponents must be equal.
Hence, There was 243 customers on 5th day .