Krishaun has $5, $10, and $20 coins worth a total of $560. She has the same number of $5 coins as $10 coins and the same number of $10 coins as $20 coins. How many $20 coins does Krishaun have?

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

Glenda makes an online purchase for picture frames for $12.95 each and formats of $5.89 each the site says it taxes paid by the customer or 6.5% of the total purchase price shipping charges are based on the