Amom mixes 9 ounces of juice with 3 ounces of water. what percent of the drink is juice?

Could someone me with this question i’ve been stuck on it for 20 minutes

Which of the following is the major negative aspect of crossover designs for research studies? a. prohibitive cost b. residual effects c-subject drepout d. incomplete randomization e. large sample size required

Yasmin purchased 6 heads of cabbage that each weighed 2 3/8 pounds how much did the cabbage way all together