Please help I need it like now

You have 3 boxes, one "strawberries"; one "mentos" and one "mixed".but you know that all the labels are in incorrect order .how do you know witch is witch?

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

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d? are he re