What is the equation of the following line (1,9) (0,0)

Solve the equation - 2(m -30) = -6m a-15 b-13 c-8 d8

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?