What does it mean when someone says, "even good people were part of the systematic abuse of slaves." provide 4 examples

People are weired. mean. crule .abusive

Brett deposited $150.00 in an account that paid 3% simple interest. the interest brett earn in 5 years :
simple interest = Pricipal x interest rate x number of years
                        = 150 x 0.03 x 5
                        = $ 22.50

hope this help