1) Solve and graph. \[ 93 \leq 5 x-18 \]

Solve: \( \frac{16^{x-1}}{4}=64 \)

Solve: \( \frac{3 x-7}{x^{2}-5 x+6}-\frac{2 x+8}{x^{2}-9}-\frac{x+2}{x^{2}+x-6}=0 \)

4. \( r^{2}+r-12 \)

Read the following description of a relationship: Tori uses 12 tomatoes to make each bowl of salad. Let \( s \) represent the number of bowls of salad and \( t \) represent the total number of tomatoes she uses. Use the function \( t=12 s \) to find the value of \( t \) when \( s=7 \).

Solve: \( \frac{3 x-7}{x^{2}-5 x+6}-\frac{2 x+8}{x^{2}-9}-\frac{x+2}{x^{2}+x-6}=0 \)