Answer :

1. 16 5 __ = ____ 64 x 64x5=320 320/16=20 20 pretzels 2. 64(pretzels)/16(ounces)=4 4 pretzels per ounce 3. 1(ounce)/ 4(pretzels) = 0.25ounces

Each pretzel weighs .25 ounces.   16/64=.25