A6ft tall person casts a 9 ft shadow. a building casts a 39ft shadow. how tall is the building?

Consider the system: y = 3x + 5 y = ax + b what values for a and b make the system inconsistent? what values for a and b make the system consistent and dependent? explain

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning