8 necklace have 864 beads in all how many beads will 15 such necklace have?​

John bought 5 lemons and used 2 of them for a salad how much did he use for.a salad . he used % of the lemons.

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

2/3(-6y+9x) expand each expression using the distributive property