exam Maths Puzzle Numerical Ability

Arnold has made 69 lace handkerchiefs. 2/3 of them are blue, and the rest are white. How many are blue?

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exam Other Question

write an equation of the line that passes through the point and has the specified slope. Sketch the line. (2,4) m=-0.8 (3x+0.4)(3x-0.4)
Find the product.