an angles measure is 6 degrees more than 3 times the measure of its complement. find the measure of the angle

Which matrix multiplication is possible?

What kind of bond pays interest which is exempt from tax?

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