exam Maths Puzzle Numerical Ability

log2 x+5=8-log2 (x+7)

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exam Other Question

Is this a function?

f(x)=2 if x>1
f(x)=-1 otherwise
Please help me with this problem. I'm confused.

Before Robert sold two female rabbits, half of his rabbits were female. After the sale, only one-third of his rabbits were fema