Question 9From time $t=0$ to time $t=1$ a population increased by $i\%,$ and from time $t=1$ to time $t=2$ the population increased by $j\%.$ Therefore, from time $t=0$ to time $t=2$ the population increased by$(i+j)\%$$ij\%$$(i+ij)\%$$\left(i+j+\frac{ij}{100}\right)\%$$\left(i+j+\frac{i+j}{100}\right)\%$