A chemist wants to make 200 liters of a 74% acid solution. She has solutions that are 20% acid and 80% acid. How much of each must she mix? Number liters 20% acid: Number liters 80% acid:

Nathan needsT of a tablespoon of vanilla to make one milk shake. If Nathan wants to make 8 milk shakes, how much vanilla will he need? 8.

Heather rides a motorized bike to work.  The bike gets about 100 miles per gallon and the tank holds about 0.4 gallon of gas.  If Heather uses the bike to drive 2.5 miles to work and then the 2.5 miles back home at the end of the day, how many days will Heather be able to ride her bike to and from work before needing to refill her gas tank? Answer:   Work:

A recipe calls for 1 bulb of garlic, minced. The yield for garlic is 87%. Garlic is purchased by the pound for $2.99. Each bulb weighs 3 ounces. How much will the garlic for this recipe cost?