In the diagram shown, ∠1=∠4 and∠2=∠3 The sum of the measures of the four angles is 140 The measure of ∠3 is 8 less than the measure of ∠4 What is the combined measure of angles 2, 3, and 4? A. 101° B. 107° C. 109° D. 117°

Solve the system of equations. y= 2x y= x^2 - 15

Me with this one question, and i'll upvote the brainliest answer

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