How many terms are in the expansion (a + b)20

Find parametric equations for the line. (enter your answers as a comma-separated list of equations. let x, y, and z be functions of t.) the line in the direction of the vector 5 i + 5 j − 6k and through the point (−4, 4, −2).

How do i do this activity, is appreciated

10% of 1,900,000. show me how you got the answer