exam Maths Puzzle Numerical Ability

Rewrite the expression as a sum, difference,and/or multiple of logarithms
log2[2 square root x / 3]

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exam Other Question

in which quadrant are the following points located? 3,-1
and can you explain so i can do the rest of them?
Thanks
Heather
A family has five children. The probablilty of having a girl is 1/2. What is the probability of having no more than 3 boys?