e, la ordenada al origen y la raiz de 18

Perform the operation and combine to one fraction. \[ \frac{3 x}{x-1}+\frac{1}{1-x} \]

a) \( \left(\frac{4}{6} \times \frac{4}{5}\right)-\left(\frac{3}{2} \times \frac{2}{6}\right) \)

Find the exact value of the expression, if possible. (If not possible, enter IMPOSSIBLE.) \[ \sin \left(\arctan \left(\frac{8}{15}\right)\right) \] \( \frac{8}{15} \)

Volunteers are needed to do a total of 60 hours of work at a concert. The shortest volunteer shift is 2 hours, and the longest is 3 hours. Which inequality shows \( v \), the number of volunteers needed?

Find the value of \( x \) in the following equations. \( \begin{array}{lll}\text { a) } 3 x+1=13 & \text { b) } 4 x+3=23 & \text { c) } 6 x+2=38 \\ \text { d) } 2 x+5=9 & \text { e) } 7 x-3=32 & \text { f) } 5 x-2=48 \\ \text { g) } 8 x-6=50 & \text { h) } 4 x-8=0 & \text { i) } 10 x-7=63 \\ \text { j) } 7 x-3=46 & \text { k) } 3 x+11=14 & \text { l) } 8 x-1=79 \\ \text { p) } 2 x-3=55 & \text { n) } 5 x+21=21 & \text { o) } 6 x-4=32 \\ \text { s) } 3 x+20=8 & \text { t) } 6 x+5=20 & \text { r) } 2 x-7=0\end{array} \)