exam Maths Puzzle Numerical Ability

y=x^2-7

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exam Other Question

You have the following data for the Main Street Corporation:

Gross profit margin 35%
Cost of sales $650,000
Inventory turnover 5
Average collection period 50 days Consider the following trapezoid with 2 sides 2s+1 and 3s and height h.
If the area of the trapezoid is given A=1/2h(3s+(2s+1), solve for s if h=3 cm and A=15cm squared.