exam Maths Puzzle Numerical Ability

Does the line below pass through the point (4,3)?

x + y = 7

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exam Other Question

Hi could you help me simplify this expression?

sqrt8x^3 times sqrt2x^5

Thanks for the help Danielle sold her house through an agent who charged her 8% of the selling price.
After the commission was paid,, Danielle received $117,760. If x is the selling price,
then x satisfies

x-0.08x-117,760

Solve this equation.