91Ó°ÊÓ

Are $-2x>6$ and $x>-3$ equivalent inequalities? Why or why not?

Which list of integers is in order from least to greatest?

$\begin{array}{l}\text{A}.−\text{3},−\text{5},−\text{7},−\text{9}\\ \text{B}.−\text{5},−\text{3},0,\text{4}\\ \text{C}.−\text{2},\text{4},−\text{5},\text{9}\\ D.−\text{8},\text{7},−\text{6},\text{3}\end{array}$

Which is the solution of the inequality $\frac{z}{-4}+3<15$ ?

F. $z<-48$

G. $z<-3$

H. $z>-48$

I. $z>-3$

Find the Sylvie new mean exam score such that Sylvie has taken $4$ exams in her science class. Her mean exam score is $71$. She earns $12$ points of extra credit, which her teacher leys her apply to one of her exams.

Solve the inequality. Graph and check your solution.

$\mathbf{7}â‰\yen \mathbf{5}\mathbf{x}\mathbf{-}\mathbf{3}$

Solve the equation. Check your solution.

Find whether the number $-8$ is a solution of $-5<n$.

Solve the equation. Check your solution.$\mathbf{3}\mathbf{x}\mathbf{+}\mathbf{2}\mathbf{x}\mathbf{=}\mathbf{25}$

Write an equivalent expression of$−6(−m+12)$.

Solve the equation. Check your solution.

11k + 9 = 42