interest

net income

moneu after deducts

principal

original amount of moneu put into an account to invest

simple interest

you only get interest on the original price

compound interest

you get interest on the original interest the first year, than the next year u add earned interest to og interest and interest thst number

DISCOUNT, tax and tip

change percent to decimal (divide by 100) than times decimal by original price. the answer is the discount itself. To find sales price subtract that decimal by og number

how many weeks in a year

52