For which pair of functions is (g circle f) (a) = startabsolutevalue a endabsolutevalue minus 2?

Cam bought some used books for $4.95. he paid $0.50 each for some books and $0.35 each for the others. he bought fewer than 8 books at each price. how many books did cam buy?

At the beginning of the day, stock xyz opened at $6.12. at the end of the day, it closed at $6.88. what is the rate of change of stock xyz? a. 1.17% b. 11.0% c. 12.4% d. 81.5%

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?