What is the converse for this conditional statement? Is the converse true? If a number is even then it is divisible by 2

Which expression is not a polynomial?

What value of x is in the solution set of 4x – 12 s 16 + 8x?

At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?