How do you solve 3^-2x+1=3^-2x-3=3^-x?

What is a rational number between 9.5 and 9.7

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

What are the solutions of the equation x4 + 6x2 + 5 = 0? use u substitution to solve.