If the equation of a line has a slope of zero and passes through the point (3,3) which form would be used to write the question of the line

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?

Select all the statements that apply to this figure

Could someone me with this question i’ve been stuck on it for 20 minutes