Determine the voltage drop (in volts) from A to B for the situation when $R_1 = 9$ ohms, $R_2 = 7$ ohms, $R_3 = 7$ ohms, $I = 9$ amps, $a = 0.1$ volts/amp, and the voltage source is turned off.
Round your answer to 2 digits to the right of the decimal.