How many liters of a 10% alcohol solution must be mixed with 40 liters of a 50% alcohol solution to obtain a 40% alcohol solution?

Kai walked one and two-thirds of a mile on saturday and four and one-sixth of a mile on sunday. how many miles did kai walk?

Cody ran nine miles on his first day of training. the next day he ran 1/8 that distance. how far did he run the second day?

The seventh-grade students at charleston middle school are choosing one girl and one boy for student council. their choices for girls are michaela (m), candice (c), and raven (r), and for boys, neil (n), barney (b), and ted (t). the sample space for the combined selection is represented in the table. complete the table and the sentence beneath it.