Ethel weighs 82 pounds, Marie weighs 68 pounds, and Edna weighs 60 pounds. What is their average weight in pounds?

The average is 70 lbs

Step-by-step explanation:

To find the average, add up the weights and then divide by the number of items added

(82+68+60)/3

210/3

70

The average is 70 lbs

70 is the average

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Step-by-step explanation:

the answer is 15% decrease

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%