Please help and thank you so much if you do you're amazing​

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?

State if the two triangles are congruent. if they are, state how you know?

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)