exam Maths Puzzle Numerical Ability

which trinomial is not a perfect square trinomial
A. 4xSQUARED+4x+1
B. xSQUARED+10x-25
C.25-30x+9xSQUARED

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exam Other Question
An angle and its complement always have a sum of 90 degrees. The sum of the measures of the angle and five times its complement is 298 degrees. What is the measure of the angle? Can someone help me on this problem?

I need to rewrite the equation 4x - 10y = 11 as a function of x

Thank you so much,
Ashley