A company makes a profit of 1.38 million this is 2.54 million more than last year what is the profit

What is the average rate of change for this function for the interval from x=2 to x=4 ?

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?

Write the equation in logarithmic form m^x=n