the price of a sweater was reduced from 20$ to 12$ by what percentage was the price of the sweater reduced

11%

Step-by-step explanation:

the answer is 11 because you need to minus

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,

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