exam Maths Puzzle Numerical Ability

Solve using the quadratic formula:
25x2+30x+9=0

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exam Other Question

i really need someones help with this problem

Find the slope of the line that passes through...
(-6,-5)and(4,1)
thanks a bunch I THINK OF ANUMBER IF IMULTIPLY IT BY 6 THE ANSWER WILL BE 80. what IS the number?