Some months have 30 days, some months have 31 days. How many months have 28 days?

If a doctor gives you 3 pills and tells you to take one pill every half hour, how long would it be before all the pills had been taken?

It took alice 5 5/6 hours to drive to her grandparents' house for . on the way home, she ran into traffic and it took her 7 3/8 hours. how much longer did the return trip take? write your answer as a proper fraction or mixed number in simplest form. the trip home took __hours longer. ?

According to the general equation for conditional probability if p(anb)=3/7 and p(b)=7/8 what is p(a i b)

How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c =