morgan ran a 200 -meter race in 23.4 seconds ,and madison ran 0.4 kilometer in 52.5 seconds who ran faster

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

What are the solutions of the system? y = x^2 + 2x +3y = 4x - 2a. (-1, -6) and (-3, -14)b. (-1, 10) and (3, -6)c. no solutiond. (-1, -6) and (3, 10)

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?