exam Maths Puzzle Numerical Ability

need help in how to figure problem.
m<aob=4x-2,m<boc=5x+10,m<cod=2x+14

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exam Other Question

In cm., the bases of an isosceles trapezoid measure 15 and 9 and each of the nonparallel sides has length 5 cm. Find the length of an altitude. I think its a number line its a table with x and y i think and it asks to find the degree of the function and i have another two lined table that says find the quadratic model