What is the chromatic number of a tree with 7 vertices?

Write an algebraic expression for the word expression the quotient of c and 8

Asquare has a side that measures 11 units. what is the area of a circle with a circumference that equals the perimeter of the square? use 3.14 for π, and round your answer to the nearest hundredth. 1519.76 units2 379.94 units2 616.56 units2 154.14 units2

If f(x) = 2x + 8 and g(x) = x4, what is (gº)?