Parallel lines cut by transversal?..help?

Empty box + box + empty box fill in the box is equal to 30 how

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

40) linda was making chocolate truffles for the first day of school. the recipe for 20 chocolate truffles is: i cup of cream 2 cups of dark chocolate she noticed this will not be enough truffles for the 42 sure that all students in each homeroom next year. to be sure that all students receive a truffle, linda must adjust her recipe. a. complete the recipe for 42 truffles cups of cream - cups of dark chocolate work: