1. tristan sandino is selling his motorcycle. his friend, rudy, is offering to pay cash in the amount of $8,800. another friend, costa, has offered payments of $200 monthly for 4 years. what is the present value of costa's payments? assume money is worth 3.4%, compounded monthly. a.) $8,963.96 b.) $9,163.96 c.) $9,600.00 2. you are thinking about investing $25,000 in a business with expected returns as follows: costs of $1,250 per quarter for one year, gains of $2,000 per quarter for the next 2 years, and gains of $3,000 per quarter for the next 3 years. what would be your rate of return after 6 years? a.) 15.55% b.) 3.89% c.) 26.36%

Ascientist studied a population of workers to determine whether verbal praise and/or tangible rewards affect employee productivity. in the study, some workers were offered verbal praise, some were offered tangible rewards (gift cards, presents, and some were offered neither. the productivity of each participant was measured throughout the study by recording the number of daily tasks completed by each employee. which inference might the scientists make based on the given information? a.) the number of daily tasks completed by each employee may influence the dependent variable, which is whether the employee receives verbal praise, tangible rewards, or neither. b.) verbal praise and/or tangible rewards may influence the independent variable, which is the number of daily tasks completed by each employee. c.) verbal praise and/or tangible rewards may influence the dependent variable, which is the number of daily tasks completed by each employee. d.) the dependent variables, which are verbal praise and tangible rewards, may influence the number of daily tasks completed by each employee.