Apa rules for citations in a reference list require that the publication date be enclosed within parentheses and that a period follow the end or close parentheses, for example: goodpaster, k. e., nash, l. l., & de bettignies, h. (2006). business ethics: policies and persons (3rd boston, ma: mcgraw-hill/irwin.

This is the right way to cite that reference:

Goodpaster, K. E., Nash, I. I., & De Bettignies, H. (2006). Business ethics: Policies and persons (3rd ed.). Boston, MA: McGraw-Hill/Irwin

utilized the penal colony

the amount of the purse is, $120.

tax rate =9%

first find the the total tax she paid on the amount is equal to the 9% of $120 i.e,

now,

total amount paid by shalika = $120 +$10.8 = $130.8