Solve for b.
76 - 15 = 56 - 3
PLEASE HELP

Factor this polynomial completely x^2-64

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?

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?