Factor 1.21a^6+22a^3+100

Aiden drives to school and back each day. the school is 16 miles from his home. he averages 40 miles per hour on his way to school. if his trip takes 1 hour, at approximately what speed does aiden drive home?

Taking algebra two apex courses and need with these questions

What point is the projection of q on a) r b) s c) t