Which is a compound event?

heads lands 3 times in 8 coin flips.

heads lands 3 times and tails lands 5 times in 8 coin flips.

heads or tails lands 1 time in 1 coin flip.

heads lands 0 times in 1 coin flip.

After the seventh month of a 12-month loan: the numerator is: {(n + 11) + (n + 10) + (n + 9) + (n + 8) + (n + 7) + (n + 6) + (n + 5)} = , and the denominator is: {(n) + (n + 1) + + (n + 11)} = . therefore, the fraction is numerator/denominator (to the nearest tenth) = %

Which of these choices show a pair of equivalent expressions?

For what value of (y) is 3^3/3^y =1/9