A cyclist travels 7.7 km in 30 minutes.
What is his average speed in km/h?

What is the vertex form of f(x) = x2 + 6x + 3

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.

Tamar is measuring the sides and angles of tuv to determine whether it is congruent to the triangle below. which pair of measurements would eliminate the possibility that the triangles are congruent