Manoj and Shira were asked to find an explicit formula for the sequence -9\,,-27\,,-81\,,-243,...−9,−27,−81 ,−243,...Minus, 9, comma, minus, 27, comma, minus, 81, comma, minus, 243, comma, point, point, point. Manoj said the formula is h(n)=-9\cdot3^{\large{n}}h(n)=−9⋅3 n h, left parenthesis, n, right parenthesis, equals, minus, 9, dot, 3, start superscript, n, end superscript, and Shira said the formula is h(n)=-3\cdot3^{\large{n}}h(n)=−3⋅3 n h, left parenthesis, n, right parenthesis, equals, minus, 3, dot, 3, start superscript, n, end superscript. Which one of them is right?