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Diameter of a wheel 80cm. If the wheel rotates through an angle of 200degrees, how many cm does it move? Show steps please!? How long does Equazen supplement really take to make effect in adults with inattentive adhd? Has someone tested it? Could someone help me with these math problems? I can't figure them out. Solve the linear equation;
x+2y=15
y=-2x+0 9x-12y=-3
-12x+16y=4? If a+b+c=4, ab+ac+bc=6, and abc=3, what is 1/a + 1/b + 1/c? How many edges in a circle?