A pair of socks priced at $2.70 was on sale for 10% off what was the original price of the socks

3 dollars

Step-by-step explanation:

If a item is 10% off, it is worth 90% or 9/10 of it's actual worth. Knowing this and calling the original price x, we can make the equation 2.7 = 9/10x

Equation:

9/10 x =2.7

x = 2.7(10/9)

x= 3

faster, im not sure why but i know it is faster

you estimate that the angle of elevation to the top of the 86th floor (the observatory) is 82 .the total height of the building is another 123 meters above the 86th floor.

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