Where would the parentheses go in this problem?
2+3×4×4 +1= 53

Ineed to know the answer to this algebra question.

Could someone with number 1 and 2

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