Charitable activity _____

The Roomba 570 is a robotic vacuum cleaner made and sold by iRobot. It can vacuum 4 rooms on a single battery charge and it costs $2 worth of electricity to charge the Roomba

Lynn is a house cleaner and can vacuum 4 rooms in 1 hour with a traditional vacuum. Suppose you want the 4 rooms in your house vacuumed once a week for one year. Ignoring the cost of any electricity Lynn uses, which method is economically efficient if Lynn charges $20 per hour? $30 per hour? A) Roomba if Lynn charges $20 per hour and Lynn if she charges $30 per hour B) Lynn if she charges $20 or $30 per hour C) Roomba if Lynn charges $20 or $30 per hour D) Lynn if she charges $20 per hour and Roomba if Lynn charges $30 per hour

A regressive tax:

a. is designed to take a larger percentage of higher incomes as compared to lower incomes b. is designed in such a way that as a person's income rises, the amount of tax as a proportion of income rises. c. takes a greater proportion of the income of lower-income groups than of higher-income groups. d. is considered to be the most equitable type of tax.