exam Maths Puzzle Numerical Ability

Find a quadratic equation that has solutions 5 and -6

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exam Other Question

Could someone please help me on this...I am clueless.

On Saturday morning, Lynn walked
for 2 hours and then ran for 30 minutes. If she ran twice
as fast as she walked and covered 12 miles altogether,
then how fast did she walk? the length of a rectangle is 4 more than twice the width. the perimeter is 28cm. What are the measures