Rationalize the denominator and simplify. \[ \frac{-9}{3 \sqrt{u}-2} \] Assume that the variable represents a positive real num

\( \begin{aligned} \text { d. } y & =2 x+3 \\ y & =5 x+12\end{aligned} \)

A pet store employee added water to a fish tank. The function \( W(t)=4+2 t \) represents the amount of water, in gallons, that the tank contained after \( t \) minutes. Complete the sentence. There were \( \square \) gallons of water in the tank before the employee started filling it, and he added water at a rate of \( \square \) gallons per minute.

1. Which two equations below have a solution of \( x=-5 \) ? A \( \frac{x}{-4}=-20 \) B \( -6+x=-11 \) C \( x-2=3 \) D \( -4 x=20 \)

Solve. Check your solution. \( 9 a+8+3 a=-5 \)

6. Find the solution. \( \quad 6 y-1=2(y+8) \)