Julia had $407.94 in the bank . she used $98.59 for a new coat which is the best estimate for the percentage of her money that julia used for the new coat? a.5% b.25% c.35% d.50%

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