Acylinder has a surface area of 150π inches2 . what is its height if the radius is 5 inches? a) 5 inches b) 10 inches c) 5 π inches d) 10π inches

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