IN THIS PICTURE NEED HELP FAST ITS EASY!

When i add money am i supposed to make it like this 7+12 or 7.00+12.00 because i got 19 dollars for my answer

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

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 =