I need help with this question plz help plz 200+200 = help plz

Jackie purchased 3 bottles of water and 2 cups of coffee for a family for $7.35. brian bought 4 bottles of water and 1 cup of coffee for his family for $7.15. how much does each bottle of water cost? how much does each cup of coffee cost? i need this done

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

Which of these triangle pairs can be mapped to each other using two reflections?