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The following hormone had their receptors in the cell membrane except a-insulin b-tsh c-gh d- cortisol

Me i've asked this question 3 time asapright triangle abc and its image, triangle a'b'c' are shown below. algebraically prove that a clockwise and counterclockwise rotation of 180o about the origin for triangle abc are equivalent rotations.

The word population in 2013 was about 7.125 billion. in 2003, it was about 6.357billion. which number represents the increase in the world population between 2003 and 2013? a; 0.0768x10/7 b; 0.768x 10/8 c; 7.68x 10/9 d; 7.68x 10/8