If the wall included 3 rows of 4 windows (instead of 2 rows of 3), investigate if it would be possible to space all the windows so that the horizontal and vertical spacings are uniform (although not
necessarily equal to each other).

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%

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step by step explanation: when u removing the parentheses and combined them that would be : x+3y-x-y=2y