Answer: Choice D 
Reason:
Exponential functions have the variable in the exponent.
Choice A is a polynomial, which means we can rule it out. Choice B is a log function, so we can rule it out also.
Choice C is a rational function because it is a ratio of two polynomials. This rules out choice C.
Choice D is the only function with the variable in the exponent. That is assuming you meant to say
instead of 
Answer: Observational study
Step-by-step explanation: I just took the test
N/3>1
n>1*3
n>3 or (3,+∞)
Solution: n>3 or (3, +∞)
Answer:
Step-by-step explanation:
i cant draw a number line but we know that integers above 1 are positive. So 1,2,3,4, and 5 are positive and marked