Pl Answer this:

Explain how solving -7y > 161 is different from solving 7y > -161.

What statement is true? 2x^2-9x+2=-1

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?

1. evaluate 8x(2)y9(-2) for x=-1 and y=2 2. simplify the equation. -() 3. simplify the expression. [tex]\frac{5}{x(-2) y9(5)}[/tex]