**Answer:**

5.6 volts

**Explanation:**

According to Ohm's Law, V = IR

where V = voltage, I = Current and R = resistance

Resistance = voltage / current

Resistance = 63 / 4

Resistance = 15.75 ohms

We have volume of gasoline = 14.0 gallon

Time taken to fill automobile tank = 1.50 minutes

So volume rate = 14.0 gallon/1.50 minutes = 9.33 gallon/ minute

We have density of gasoline = 0.77 kg/L = 6.073 lb/US gal

Mass rate = Density * Volume rate

= 9.33 gallon/ minute*6.073 lb/US gal = 56.68 lb/min

So mass flow rate delivered by the gasoline pump in lbm/min = 56.68