terrell has a water purifier for backpacking. it will purify 1 liter of water in 1 minute. How long would it take terrell to purify enough water for 4 canteens that each hold 750 mL, and two that each hold 1.5 L

[(4cans * 750mL/can * 1L/1000mL) + (2cans * 1.5L/can)] * 1min/L = ____ min