A factory puts 1/3 of gallon of vinegar into each batch of salad dressing. How many gallons of vinegar will be used in 3 batches?

1 gallon

Step-by-step explanation:

1/3 times 3 = 1

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%