8 cups of water and 3 cups of drink mix. whats the ratio of water to drink mix

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

Which of the following expressions are equivalent ?

What is the slope of the line (-7,2) (4,6)