What can you do to the equation 9x + 4 = 11x – 6 to change it to the form 4 = 2x – 6?

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?

Cora bought a package of erasers. there are 4 pink erasers and 12 blue erasers. what is the ratio of pink erasers to blue erasers?

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