Let r (a, b) e z2 2a2(a - 4) 1)3 10 3(2b 3. (2b give proofs for each of the propositions below a) the relation r is an equivalence relation on the set z b) vx, y, z e z, ({(x, y), (x, z), (y, z) nr r) y+z, 1)

a) 0.25x times 3. (could be wrong on equation.)

b) 2.25 pound of dark chocolate. (can i eat all the chocolate? plz? anyway, again, could be wrong, but i hope im right. all the chocolate together should be 5.25 pounds)

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a 360 degree rotation

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i need a picture

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