if you end with 1,920 bacteria in a petri dish and the population doubled every hour, how many bacteria did you start with 6 hours ago.

Aand b are correctly balanced reactions. they have the same number of atoms in both sides of the reaction

At a constant it will take one hour to travel 32 mi.at that speed it will take 1/2 hr to travel the remaining 16 mi.it will take 1+1/2 hr to travel the 48mi @ 32mph.so 1 hr = 60 min& 1/2 hr = 30 min1+1/2 hr = 90 min.there are 60s in each 90 × 60 = 3600 seconds.the real question seriously is he why are they driving so slow? ! lol.

The percent increase is 25%