step how how ypu arrived to your answer don't skip any conveersion for me to undersnat thanks

1. of the following conversion problems to complete. Report your answer with the correct number o significant figures. a. Convert 0.510 in/ms to km/hr. b. Calculate the mass in lb of 1.00 qt of benzene. The density of benzene is 0.879 g/ml. C. Convert the density of ethanol (0.79 g/ml) into units of lbs/m