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What is 4 x 6? If a+b+c=4, ab+ac+bc=6, and abc=3, what is 1/a + 1/b + 1/c? Diameter of a wheel 80cm. If the wheel rotates through an angle of 200degrees, how many cm does it move? Show steps please!? How many 2 cubic ft. bags of mulch to fill a space that is 30 ft. x 16 ft. x 3 in's deep? 15.00g of Si reacts with 25.00g of F2 to produce 28.67g of SiF4. Which reactant is the limiting reagent?