If a rescue vessel has enough provisions for 10 people to survive for 6 days, how long will 12 people survive on the vessel?​

Answer this question only if you know the 30 points and

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Your car's gasoline tank holds 18 gallons of gasoline. on a trip in canada, the tank is one-quarter full. you want to fill the tank. how many liters of gasoline are needed to fill the tank