Which best explains why these two figures are similar or not similiar?

Which is equivalent to 10/12? options: 10/18 5/6 3/12 9/11

Which expression shows the sum of the polynomials with like terms grouped together

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?