Please help me to answer the question below ​

Aformual for 8 bottles of window cleaner calls for 6 cups of rubbing to customers alcohol 2 1/4 gallons of water and 1 1/2 cups of ammonia alcohol would the forula call if a factory made 1,280 bottles for stores to sell to customers

What is the result of adding the system of equations? 2x+y=4 3x-y=6

2. explain in words how you plot the point (4, −2) in a rectangular coordinate system.