Question 902883
RT=D for rate time distance.


Most of your work is this:


{{{1300*km*1000(m/km)*100(cm/m)*(1/2.54)(inch/cm)*(1/12)(foot/inch)*(1/5280)(miles/foot)}}}


{{{((1300*1000*100)/(2.54*12*5280))*miles}}}