Need help with my algebra 1 homework. Please show all work. Thanks so much have a great day !!! :)

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

Acircle has a circumference of 28.36 units what is the diameter of the circle

With both problems. a.s.a.p directions on photo ^