Four tenths is expressed as .4 five thousandths is expressed as .005 the sum of these is .405 and divided by 2 (there are two numbers we added), we get .2025, that is the average
Sales tax is calculated by multiplying the cost of a good or service by the appropriate sales tax rate The answer is B (purchase price) (percent sales tax); then d. (purchase price) (percent sales tax). Hope it helps!:)
