What is m∠1? Help me, please

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

Which strategy is used by public health to reduce the incidence of food poisoning?

Which shows the first equation written in slope-intercept form? 1/2 (2y + 10) = 7x