Triangle Congruence SAS Which of these triangle pairs can be mapped to each other using a single translation?

Abby is preparing fruit punch for her party. she starts with a bowl filled with liquid that has 1/2 fruit juice and 1/2 sprite, but she decides it's too fruity. so she pours out 1/4 of the liquid, and then fills the bowl up again with sprite. what fraction of the punch is now sprite?

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:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?