Arestaurant bill comes to $28.35.find the total cost if the total cost if the tax is 6.25% and a 20% tip is left on the amount before tax?

How do i get the answer for 2/3 * 10/3

Is the following relation a function? x y 1 4 −1 −2 3 10 5 16 yes no

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