It's B.
4X+2_>-6
-subtract 2 to the other side
4x_>-8
-divide 4 to both sides to get X by itself
X_> -8/4
-Simplify
X_> -2
Commutative transformation is type of transformation in which the order of operations doesn't affect the result of transformation.
The only commutative transformation is D.
Pi rounded to a whole number would equal three. Circumference equals 2pi*r. The radius in this case is half of the diameter, so 4.5 cm. 2 times pi, or three equals 6 times 4.5 is 27
3(x+2) < 10 //// that should be right!!
First blank: not random Because he sent it to the top 5 students. Not random students throughout the grade.
second blank: I would guess not valid because it was not a random sample.