HELP ME. Give the right answer. Please.

Which of the following tables represents exponential functions?

Bring the fraction a/a-4 to a denominator of 16-a^2

The frequency table shows the results of a survey comparing the number of beach towels sold for full price and at a discount during each of the three summer months. the store owner converts the frequency table to a conditional relative frequency table by row. which value should he use for x? round to the nearest hundredth. 0.89 0.90 0.92 0.96