A meuseum added 18 painting to its collection in may. This is 20% of paintings the meuseum has in April. How many paintings did the meuseum have in April ?

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 = f