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# LISD 7th EUS 6

### Proportionality

commission "money earned for the sale of an item, usually a percentage of the sale price."
discount "the amount of money saved on a purchase, which is subtracted from the original price"
percent of change compares the change in quantity to the original amount
proportion an equation that shows that two ratios are equivalent
rate "a ratio that compares two numbers with different kinds of units (for example, gallons:hour, price:item, meters:second)"
sale price the cost of an item after a discount has been subtracted
tax percent of original price that is added on to that price; a percent of the purchase price that is added onto to original price (which is paid to the government)
tip "an additional percentage added to the cost of an item (meal, haircut, etc.) given to a person providing a service"
unit rate a rate with a denominator of one
Created by: aprilchauvette

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