Write a recursive formula for the following arithmetic sequence. \[ \begin{array}{l}22,10,-2,-14, \ldots \\ a_{1}=\square \\ a_{n}=\square \text { for } n \geq 2\end{array} \]

186. \( \sqrt{\left[\left(\frac{4}{7}-\frac{12}{35} \times \frac{25}{36}\right)-\frac{15}{26} \times \frac{13}{30}\right]+\left(\frac{5}{7}-\frac{15}{7} \times \frac{2}{45}\right) \times \frac{7}{26}} \) 187. \( \sqrt{\frac{6}{5^{2}} \times\left\{\left[\left(\frac{3}{2}+\frac{2}{3}+2\right) \times 3-\frac{1}{4}\right]:\left(\frac{7}{3}-\frac{1}{2} \times \frac{7}{5}\right)-\frac{3}{2}\right\}} \)

8. Write the explicit formula for the sequence, given the recursive formula? \( f(0)=13 \) \( f(x)=f(x-1) \cdot 4 \)

186. \( \sqrt{\left[\left(\frac{4}{7}-\frac{12}{35} \times \frac{25}{36}\right)-\frac{15}{26} \times \frac{13}{30}\right]+\left(\frac{5}{7}-\frac{15}{7} \times \frac{2}{45}\right) \times \frac{7}{26}} \) 187. \( \sqrt{\frac{6}{5^{2}} \times\left\{\left[\left(\frac{3}{2}+\frac{2}{3}+2\right) \times 3-\frac{1}{4}\right]:\left(\frac{7}{3}-\frac{1}{2} \times \frac{7}{5}\right)-\frac{3}{2}\right\}} \)

What is the exponent in the expression below? \( 3.67^{8} \) A. 6 B. 7 C. 3 D. 8

8. Write the explicit formula for the sequence, given the recursive formula? \( f(0)=3 \) \( f(x)=f(x-1) \cdot 2 \)