Help! (Easy, but I’m making it way too hard) A 50-ounce bottle of cranberry juice has 30 ounces of water, What percent of the bottle of cranberry juice is water?

Noel is hoping to make a profit (in $) on the school play and has determined the function describing the profit to be f(t) = 8t – 2654, where t is the number of tickets sold. what does the number 8 tell you?