book Maths Puzzle Numerical Ability

A box is being pulled by means of two ropes. One rope exerts 100 pounds of force at 28degrees above the horizontal. The other rope exerts 58 pounds of force at 23degrees below the

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A 10 cm cube of material has a mass of 2.2 kg. What is its density? What is the coefficient, the like term, and the constant of a+2a+3a-4a? I need help now.