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I am trying to find this: how do we find the country's rank population such as upper class, lower class, and middle class?

Two cards are drawn from a standard 52 card deck. a) what is the probability that both cards drawn are black? b) what is the probability that one card is red and the other is black? c) what is the probability that a two face cards are drawn? d)what is the...

a 1.50 kg book is sliding along a rough horizontal surface. At point A it is moving at 3.21 m/s, and at point B it has slowed to 1.25m/s. 1.) How much work was done on the book between A and B? 2.) If -0.750 J of work is done on the book from B to C, how...

Ok. Thanks! Now I can have my starting point. Thank you.

2 015 Your hand jerks up after touching a hot stovetop. Which two organ systems are most responsible for your reaction? (1 point) nervous and muscular circulatory and muscular O immune and muscular O nervous and respiratory