Find x. (Compare the divisor and remainder.) X+ 104=601 R71

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

Choose the more precise measurement. 26.4 cm or 8.39 cm

Write the percent as a fraction or mixed number in simplest form. 0.8%