What is the measure of angle 1

1-for what value of x is line a parallel to line b 2-for what value of x is line a parallel to line b

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan 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?

What is the value of the expression 9+n/3-6 when n = 12? 1. 5. 7. 12.