How many liters of a nutrional drink which is 60% water should be added to a 8 liter drink which is 80% water to obtain a drink which is 70% water

Tell whatever the ordered pair is a solution of the given system.

Arestaurant charges $100 to rent its banquet room for an event. it also charges $15 to serve dinner to each guest. write an equation for the total cost of the banquet room in terms of the number of guests. deine your variables. what is the total cost of the banquet room for 20 guests?

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?