exam Maths Puzzle Numerical Ability

The length of a rectangle is 5 inches more than the width. The perimeter is 70 inches. Find the length.

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exam Other Question

an amusement park purchased equipment form a manufacturer for $42,000 minus trade discounts of 30/20/15.

Show me how to caculate the trade discount on the purchase. Please. Can you help me solve my word problem...instructions...the cost in dollars of manufacturing (w)wing nuts is given by the xpression 0.07w + 13.3. Find the cost when 375 wing nuts are made. What is the average cost to manufacture one wing nut?