Differences between two samples are least likely to be statistically significant if the samples are and the standard deviations of the samples are

Remmi wrote the equation of the line y=⅓(x+2) he solved for x and got x=3y-2 which of the following is an equivalent equation for x? a.x=y-11/3 b.x=y+7/3 c.x=3(y-⅔) d.x=3(y+⅔)

Which of the following transformations will always produce a congruent figure?

Combine like terms to make a simpler expression 3z+z