exam Maths Puzzle Numerical Ability

The length of a rectangle is 4 cm more than 2 times its width. If the area of the rectangle is 74 cm^2, find the dimensions of the rectangle to the nearest thousandth.

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simplify: (a^4b^2)^6 50) Business and finance. The cost of producing a number of items x is given by:

C = mx + b

In which b is the fixed cost and m is the variable cost (the cost of producin