Can someone me with this question it has been confusing me.

Subtract 8 1/6 - 4 5/6 . simplify the answer and write as a mixed number.

The probability that you roll a two on a six-sided die is 1 6 16 . if you roll the die 60 times, how many twos can you expect to roll

Which spreadsheet would be used to compute the first nine terms of the geometric sequence a^n=32•(1/2)n-1