Write the equation of the line that passes through the points (3, 6) and (5, 18) using function notation. f(x) = 2x + 12
f(x) = 6x − 12
y = 2x + 12
y = 6x − 12

What is the value of x in the following equation. -x ^3/2 = -27

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Quadrilateral abcd in the figure below represents a scaled-down model of a walkway around a historic site. quadrilateral efgh represents the actual walkway. abcd is similar to efgh. what is the total length, in feet of the actual walkway?