Please help ..Select the correct answer. Which situation is best modeled by an exponential function with time as the independent variable?
O A.
an investment that increases by $30 every year
OB.
an investment that increases by $1 every 2 weeks
OC.
"an investment that takes 2 years to increase in value by $50 and 10 years to increase in value by $250
OD
an investment that increases by a constant factor of 1.03, or at a rate of 3%, every year

For a research project in a political science course, a student has collected information about the quality of life and the degree of political democracy in 50 nations. specifically, she used infant mortality rates to measure quality of life and the percentage of all adults who are permitted to vote in national elections as a measure of democratization. her hypothesis is that the quality of life is higher in more democratic nations. read this research description carefully. pay attention to the following: how many variables are in this research? what is the scale of the variable for infant mortality? p1c4. what is the dependent variable in this research problem? p1c4. is this research descriptive or inferential? does this research involves single variable analysis or two or more variable analysis?