Aa AaE 4. Future value of annuities There are two categories of cash flows: single cash flows, referred to as "lump sums," and annuities. Based on your understanding of annuities, answer the following questions. Which of the following statements about annuities are true? Check all that apply D A perpetuity is a series of equal payments made at fixed intervals that continue infinitely and can be thought of as an infinite annuity. When equal payments are made at the end of each period for a certain time period, they are treated as ordinary annuities. when equal payments are made at the end of each period for a certain time period, they are treated as an annuity due D An ordinary annuity of equal time earns less interest than an annuity due Which of the following is an example of an annuity? O A job contract that pays an hourly wage based on the work done on a particular day O A job contract that pays a regular monthly salary for three years