Twenty-one less than a number is seven. What is the number?

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 term describes the point where the perpendicular bisectors of the three sides of a triangle intersect?

Angles 1 and 2 are complimentary angles. angle 1 = 52 degrees. what is the measure of angle 2?