Chemical and physical properties are used to help identify substances. A substance's chemical properties identify whether or not that substance reacts with another substance.

Cbecause they dump truck

a

explanation:

∴‰‰αβγδ jhyb iujm miunimubn

csc

answer: Sales tax is an amount added to a price to get the total. We multiply by the decimal for the percent; this means we divide the percent by 100 before we multiply. Once we multiply, this gives us the amount of sales tax. We add this to the price of the item to get the total purchase price.