Some Math questions if you can help Please help, Please Don't waste my answer, This test is very Important, and Is 25% of my Grade

Which expressions are equivalent to k/2 choose 2 answers: a k-2 b 2/k c 1/2k d k/2 e k+k

The number of branches on a tree demonstrates the fibonacci sequence. how many branches would there be on the next two levels of this tree? 13 | | | m branches

Write the equation in logarithmic form e^x=403.429