Convert improper fractions into mixed numbers using number bond

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

Which statement describes surface features called maria on the moon

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?